Windows 7 Laptop crashes IRQL not less or equal (ntoskrnl.exe)


New Member
Feb 4, 2013
Hello everyone. I read the forum rules, and posting rules for BSOD's. Well here we go, I had numerous BSODs on my laptop. Usually when playing games or watching videos online. Bsod appears as IRQL NOT LESS OR EQUAL and some stop code, or sometimes it writes that the file ntoskrnl.exe had a problem and it needed to be shut down to prevent damage (smething like that). My laptop is ASUS K50IN.

These are my files, inside I have included w7f diagnostic tool collected files and cpuz screenshots, the only thing I didnt manage is rammon, I got the error "RAMMON was unable to retrieve SPD information from the RAM modules." so rammon is left out from the zip. Any help is greatly appreciated !! :)

P.S. (I did run the memtest program inside windows 7 which ran overnight, It got to about 230% check and it said [0] Errors found so far, I shut it down in the morning.)

View attachment
129 Windows Updates installed. Most systems have at 140/150 or more. Please visit Windows Update and get ALL available updates (it may take several trips to get them all).

These devices have issues:
USB 2.0 1.3M UVC WebCam USB\VID_04F2&PID_B071&MI_00\6&32D26C37&0&0000 This device is disabled.

Bluetooth Peripheral Device BTHENUM\{00001132-0000-1000-8000-00805F9B34FB}_VID&0002000A_PID&0000\7&15405672&0&D0C1B151DD6C_C00000001 The drivers for this device are not installed.
USB webcam is disabled. Is this deliberate? If so, why?
Bluetooth drivers not installed. Please visit the manufacturer's support website to download/install the latest, Win7 compatible drivers for this device.

The memory dumps don't have much information in them. I suspect an issue with networking, but am not sure of exactly what it is. If you have a spare network card you might want to try it to see if it helps (don't go out and buy one just because of this - it's just a hunch on my part).

I'd also suggest the following things:

1) Please run these free hardware diagnostics: Hardware Diagnostics
2) Please run Driver Verifier according to these instructions: Driver Verifier Settings
3) If Driver Verifier doesn't reveal anything, then run it while having it check ALL drivers.

The following is for informational purposes only.
[FONT=lucida console]**************************Sun Feb  3 17:43:28.435 2013 (UTC - 5:00)**************************
Loading Dump File [C:\Users\Owner\SysnativeBSODApps\020313-20685-01.dmp]
Windows 7 Kernel Version 7601 (Service Pack 1) MP (2 procs) Free x64
Built by: [B]7601[/B].17944.amd64fre.win7sp1_gdr.120830-0333
System Uptime:[B]0 days 2:36:45.370[/B]
Probably caused by :[B]ntkrnlmp.exe ( nt!KiPageFault+260 )[/B]
BugCheck [B]D1, {3ed, 2, 8, 3ed}[/B]
Arg1: 00000000000003ed, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000008, value 0 = read operation, 1 = write operation
Arg4: 00000000000003ed, address which referenced memory
FAILURE_BUCKET_ID: [B]X64_0xD1_CODE_AV_BAD_IP_nt!KiPageFault+260[/B]

3rd Party Drivers:
The following is for information purposes only.
Any drivers in red should be updated or removed from your system. And should have been discussed in the body of my post.
There are no 3rd party drivers listed in the memory dump
Hello, and thank you for your interest in my problem. I turned off my webcam because it would often turn itself on (I see a green led blinking beside the camera). So I got worried that it turned itself remotely by a virus or something. I scanned my PC, and didn't found anything. So its something else, and since I hate that green led, I disabled the webcam in Device manager since I don't use it. I don't think that disabling a device should be in any connection to my BSOD problem.

I will run the diagnostic tools you recommended and get back to ya.

Thanks, once again!
I ask about it for troubleshooting purposes. In this case, there's an unexplained event causing your webcam light to come on. You scanned for viruses and didn't find any - so I have to wonder what was causing the webcam to come on like that. It could be a program doing this, or it could be a problem with a program, or it could be a hardware problem.

Also, disabling a device isn't a bad idea - but some devices still load their drivers before Windows disables them.
1) It's best to disable things in the BIOS (but laptops don't usually have very detailed BIOS's that are capable of this)
2) If disabled in Windows, it's best (when having problems) to enable the device, update it's drivers, then disable it again. This covers the possibility that the drivers were loaded before Windows disabled the device.

All that being said, I still have to wonder if the webcam is somehow involved in this.
We'll have to see what the diagnostics reveal.
NOTE: an idea for later is to disable the USB functions (temporarily) in the BIOS. If that stops the problems, then we can presume that something in the USB sub-system is at fault
Hello again.

To answer your question above. I already have all the available windows updates, I ran the "Check for Updates" button again, just in case, but it only showed up an update for my MS security essentials.

There is no bluetooth driver for my laptop. It doesn't come with integrated bluetooth, instead I bought a dongle over 3 years ago and use it modestly. With it came the mini cd with the drivers and program but it was useless because the program named "BlueSoleil" was not full version. I mean, after about a year or so it started to give me error messages that I need to buy a newer version or something like that (I can't remember, but it didn't let me to use the program anymore)...Anyway It was stupid that a dongle which I bought didn't came with normal drivers and a program for file transferring -.- So eventually I couldn't do anything with that problem so I installed some kind of microsoft drivers for bluetooth which I got trough windows update.

Now back to the diagnostics:

1) I checked my computer for viruses using an online scanner (ESET NOD) and it found nothing. Everything is clean.

2) I read the instructions for Windows verifier, and got it set as it told me on the web site. After that I restarted my system and it crashed several times (Different BSOD's showed up). So i decided to go to safe mode and turn the verifier off, so it doesn't force my drivers so much (I couldn't log into windows because of these BSOD's). Anyway I din't find verifier under safe mode (don't know why) so I restarted my system once more and presed F8, and took the option "Load windows with last good known configuration(advanced)" and it loaded my windows 7 normally. After that I disabled the verifier settings so it doesn't force my computer into another crash.

3) I gathered the logs and stuff again with W7F Diagnostic tool, I hope some information can finally be gathered out of these. Here they are: View attachment W7F_05-02-2013.rar

4) This is a picture taken when 1 of my crashes occurred, I hope it helps :

I'm looking forward to hearing from you.
Last edited:
It looks like Driver Verifier is catching a bug in the WinCDEmu's virtual device driver. The driver itself is dated Aug 8 2011, so you may wanna update it, or perhaps switch to another solution for mounting ISO's. Often times virtual drive software can be rather buggy so it's imperative to keep them updated as well as keep yourself aware of alternative options in case the bugs for your current software aren't getting fixed.

I'm not entirely sure the bug in this driver is actually the cause of your recent crashes, but that's what Driver Verifier is detecting as being a problem, so you'll want to take care of it, then turn on Driver Verifier again and send us any crashdumps for any new crashes it may cause. Basically we're using Driver Verifier to sift your system of any driver-related bugs that could cause this.

I did notice that the reason this bug is showing up in this driver is that it's telling Windows it doesn't have enough resources to complete the request. Whether that's because the driver itself is bugged in not allocating itself enough resources or attempting to overuse what it is given, or if it's really because there's a resource issue in Windows, I can't tell with a minidump; a kernel dump (MEMORY.DMP in Windows folder) will be needed for that information. Regardless, be vigilant on checking your system to see if it's running low on memory.


The DV bugcheck subcode of 0x215 is new to me. I still don't quite understand the methodology behind it, so I can't fill anyone in on it better than what I can interpret. However, what I can garner from it is that the IOstatus it did give (when it should've been STATUS_NOT_SUPPORTED) is c000009a, or Insufficient system resources exist to complete the API. That's not really a good sign, and hints on resource issues (i.e. memory). Either this driver or some other driver is probably filling up driver pool (memory reserved for drivers/kernel) and it's affecting this driver. I'm not sure. Either way, it's something to consider.

1: kd> !analyze -v
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

The IO manager has caught a misbehaving driver.
Arg1: 0000000000000215, A non-successful non-STATUS_NOT_SUPPORTED IRP status for IRP_MJ_PNP is being
    passed down stack. Failed PNP IRPs must be completed.
Arg2: fffff880044457cb, The address in the driver's code where the error was detected.
Arg3: [COLOR=#ff8c00]fffff980058ace10[/COLOR], IRP address.
Arg4: 0000000000000000

Debugging Details:

TRIAGER: Could not open triage file : C:\Program Files (x86)\Windows Kits\8.0\Debuggers\x64\triage\modclass.ini, error 2

BUGCHECK_STR:  0xc9_215


fffff880`044457cb 4883c438        add     rsp,38h

fffff880`044457cb 4883c438        add     rsp,38h

IRP_ADDRESS:  fffff980058ace10

DEVICE_OBJECT: fffffa800580a6e0





LOCK_ADDRESS:  fffff80002edfb80 -- (!locks fffff80002edfb80)

Resource @ nt!PiEngineLock (0xfffff80002edfb80)    Available

WARNING: SystemResourcesList->Flink chain invalid. Resource may be corrupted, or already deleted.

WARNING: SystemResourcesList->Blink chain invalid. Resource may be corrupted, or already deleted.

1 total locks

    Lock address  : 0xfffff80002edfb80
    Thread Count  : 0
    Thread address: 0x0000000000000000
    Thread wait   : 0x0

LAST_CONTROL_TRANSFER:  from fffff8000316a3dc to fffff80002ce3fc0

fffff880`031e11d8 fffff800`0316a3dc : 00000000`000000c9 00000000`00000215 fffff880`044457cb fffff980`058ace10 : nt!KeBugCheckEx
fffff880`031e11e0 fffff800`0317447a : fffff800`031689f0 fffff880`044457cb fffff980`058ace10 00000000`00000000 : nt!VerifierBugCheckIfAppropriate+0x3c
fffff880`031e1220 fffff800`03175483 : 00000000`00000215 fffff880`044457cb fffff980`058ace10 00000000`ffffffff : nt!ViErrorFinishReport+0xda
fffff880`031e1270 fffff800`031810b2 : fffffa80`0365b6d0 fffff880`00000008 fffff880`00000000 fffff880`00000003 : nt!VfErrorReport1+0x63
fffff880`031e1310 fffff800`0316a120 : fffff980`058acf70 fffffa80`057f7920 fffff980`058acf70 fffff980`058acf70 : nt!VfPnpVerifyIrpStackDownward+0xe2
fffff880`031e1380 fffff800`03182b50 : fffffa80`057f7920 fffffa80`057a84f0 fffff980`058ace10 fffffa80`056301c8 : nt!VfMajorVerifyIrpStackDownward+0x80
fffff880`031e13e0 fffff800`03182d86 : fffffa80`00000000 fffffa80`00000000 fffffa80`00000000 fffff880`044457cb : nt!IovpCallDriver1+0x4a0
fffff880`031e1490 fffff800`03186bb2 : fffff980`058ace10 00000000`00000002 fffff980`058ace48 fffff800`0316ba82 : nt!VfBeforeCallDriver+0x186
fffff880`031e14f0 fffff880`044457cb : fffff980`058ace10 00000000`00000002 fffffa80`0580a940 fffffa80`05719610 : nt!IovCallDriver+0x502
fffff880`031e1550 fffff980`058ace10 : 00000000`00000002 fffffa80`0580a940 fffffa80`05719610 fffffa80`00000000 : BazisVirtualCDBus+0x137cb
fffff880`031e1558 00000000`00000002 : fffffa80`0580a940 fffffa80`05719610 fffffa80`00000000 fffff980`058ace10 : 0xfffff980`058ace10
fffff880`031e1560 fffffa80`0580a940 : fffffa80`05719610 fffffa80`00000000 fffff980`058ace10 fffff980`01508d50 : 0x2
fffff880`031e1568 fffffa80`05719610 : fffffa80`00000000 fffff980`058ace10 fffff980`01508d50 fffff880`044459e4 : 0xfffffa80`0580a940
fffff880`031e1570 fffffa80`00000000 : fffff980`058ace10 fffff980`01508d50 fffff880`044459e4 fffff980`01508d50 : 0xfffffa80`05719610
fffff880`031e1578 fffff980`058ace10 : fffff980`01508d50 fffff880`044459e4 fffff980`01508d50 fffff880`031e1610 : 0xfffffa80`00000000
fffff880`031e1580 fffff980`01508d50 : fffff880`044459e4 fffff980`01508d50 fffff880`031e1610 fffffa80`056301c8 : 0xfffff980`058ace10
fffff880`031e1588 fffff880`044459e4 : fffff980`01508d50 fffff880`031e1610 fffffa80`056301c8 fffff800`03182bcc : 0xfffff980`01508d50
fffff880`031e1590 fffff980`01508d50 : fffff880`031e1610 fffffa80`056301c8 fffff800`03182bcc fffffa80`0580a940 : BazisVirtualCDBus+0x139e4
fffff880`031e1598 fffff880`031e1610 : fffffa80`056301c8 fffff800`03182bcc fffffa80`0580a940 fffffa80`0580a940 : 0xfffff980`01508d50
fffff880`031e15a0 fffffa80`056301c8 : fffff800`03182bcc fffffa80`0580a940 fffffa80`0580a940 fffff880`031e1840 : 0xfffff880`031e1610
fffff880`031e15a8 fffff800`03182bcc : fffffa80`0580a940 fffffa80`0580a940 fffff880`031e1840 00000000`00000000 : 0xfffffa80`056301c8
fffff880`031e15b0 fffff980`058ace10 : fffffa80`00000000 fffffa80`00000001 fffffa80`0580aa90 fffff800`0318952a : nt!IovpCallDriver1+0x51c
fffff880`031e1660 fffffa80`00000000 : fffffa80`00000001 fffffa80`0580aa90 fffff800`0318952a fffff880`031e1738 : 0xfffff980`058ace10
fffff880`031e1668 fffffa80`00000001 : fffffa80`0580aa90 fffff800`0318952a fffff880`031e1738 fffff880`0444448f : 0xfffffa80`00000000
fffff880`031e1670 fffffa80`0580aa90 : fffff800`0318952a fffff880`031e1738 fffff880`0444448f fffff980`0305afa0 : 0xfffffa80`00000001
fffff880`031e1678 fffff800`0318952a : fffff880`031e1738 fffff880`0444448f fffff980`0305afa0 fffffa80`0580a940 : 0xfffffa80`0580aa90
fffff880`031e1680 fffffa80`0571fe00 : fffffa80`0580a940 fffff800`03186c16 fffffa80`0580a940 fffff980`058ace10 : nt!ViFilterDispatchPnp+0x13a
fffff880`031e16b0 fffffa80`0580a940 : fffff800`03186c16 fffffa80`0580a940 fffff980`058ace10 fffff980`058ace10 : 0xfffffa80`0571fe00
fffff880`031e16b8 fffff800`03186c16 : fffffa80`0580a940 fffff980`058ace10 fffff980`058ace10 fffff800`0318237e : 0xfffffa80`0580a940
fffff880`031e16c0 fffff800`0318952a : fffff980`058acf70 fffffa80`0580a940 fffffa80`0580a6e0 fffffa80`0571fec0 : nt!IovCallDriver+0x566
fffff880`031e1720 fffff800`03186c16 : fffff980`058ace10 00000000`00000002 fffffa80`0580a6e0 fffffa80`05b96e00 : nt!ViFilterDispatchPnp+0x13a
fffff880`031e1750 fffff800`03099fde : fffff980`058ace10 fffffa80`05b927b0 fffffa80`0580a6e0 fffffa80`05b96e00 : nt!IovCallDriver+0x566
fffff880`031e17b0 fffff800`0309a34a : 00000000`00000000 fffffa80`05b927b0 fffff800`02ddb5a0 00000000`00000000 : nt!PnpAsynchronousCall+0xce
fffff880`031e17f0 fffff800`0309c697 : fffff800`02edf940 fffffa80`0373fb60 00000000`00000002 00000000`00000000 : nt!PnpQueryDeviceRelations+0xfa
fffff880`031e18b0 fffff800`030ccc7c : fffffa80`0373fb60 fffffa80`03720015 fffffa80`03721880 00000000`00000002 : nt!PipEnumerateDevice+0x117
fffff880`031e1910 fffff800`030cd1ac : fffff800`02edd500 00000000`00000000 00000000`00000000 00000000`00000000 : nt!PipProcessDevNodeTree+0x21c
fffff880`031e1b80 fffff800`02dddec2 : 00000001`00000003 00000000`00000000 00000000`32706e50 00000000`00000084 : nt!PiProcessStartSystemDevices+0x7c
fffff880`031e1bd0 fffff800`02ced641 : fffff800`02dddbc0 fffff800`02fd6501 fffffa80`03708600 00000000`00000000 : nt!PnpDeviceActionWorker+0x302
fffff880`031e1c70 fffff800`02f7ae5a : 00000000`00000000 fffffa80`03708660 00000000`00000080 fffffa80`036ef040 : nt!ExpWorkerThread+0x111
fffff880`031e1d00 fffff800`02cd4d26 : fffff880`009ee180 fffffa80`03708660 fffff880`009f8f40 00000000`00000000 : nt!PspSystemThreadStartup+0x5a
fffff880`031e1d40 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiStartSystemThread+0x16



SYMBOL_NAME:  BazisVirtualCDBus+137cb

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: BazisVirtualCDBus

IMAGE_NAME:  BazisVirtualCDBus.sys


FAILURE_BUCKET_ID:  X64_0xc9_215_VRF_[COLOR=#ff0000]BazisVirtualCDBus[/COLOR]+137cb

BUCKET_ID:  X64_0xc9_215_VRF_[COLOR=#ff0000]BazisVirtualCDBus[/COLOR]+137cb

Followup: MachineOwner

1: kd> [COLOR=#0000cd]!irp [/COLOR][COLOR=#ff8c00]fffff980058ace10 [/COLOR][COLOR=#0000cd]1[/COLOR]
Irp is active with 4 stacks 4 is current (= 0xfffff980058acfb8)
 No Mdl: No System Buffer: Thread fffffa8003708660:  Irp stack trace.  
Flags = 40000000
ThreadListEntry.Flink = fffff980058ace30
ThreadListEntry.Blink = fffff980058ace30
IoStatus.Status = [COLOR=#ff0000]c000009a[/COLOR]
IoStatus.Information = 00000000
RequestorMode = 00000000
Cancel = 00
CancelIrql = 0
ApcEnvironment = 00
UserIosb = 00000000
UserEvent = 00000000
Overlay.AsynchronousParameters.UserApcRoutine = 00000000
Overlay.AsynchronousParameters.UserApcContext = 00000000
Overlay.AllocationSize = 00000000 - 00000000
CancelRoutine = 00000000   
UserBuffer = 00000000
&Tail.Overlay.DeviceQueueEntry = fffff980058ace88
Tail.Overlay.Thread = fffffa8003708660
Tail.Overlay.AuxiliaryBuffer = 00000000
Tail.Overlay.ListEntry.Flink = 00000000
Tail.Overlay.ListEntry.Blink = 00000000
Tail.Overlay.CurrentStackLocation = fffff980058acfb8
Tail.Overlay.OriginalFileObject = 00000000
Tail.Apc = 00000000
Tail.CompletionKey = 00000000
     cmd  flg cl Device   File     Completion-Context
 [  0, 0]   0  0 00000000 00000000 00000000-00000000    

            Args: 00000000 00000000 00000000 00000000
 [  0, 0]   0 10 00000000 00000000 00000000-00000000    

            Args: 00000000 00000000 00000000 00000000
 [ 1b, 7]   0 e0 fffffa800580a940 00000000 fffff8000316cda0-fffff980058acfb8 Success Error Cancel 
          fffffa800580a940: Could not read device object or _DEVICE_OBJECT not found
            Args: 00000000 00000000 00000000 00000000
>[ 1b, 7]   0 e0 fffffa800580a6e0 00000000 fffff80002ddb5a0-fffffa8005b927b0 Success Error Cancel 
          fffffa800580a6e0: Could not read device object or _DEVICE_OBJECT not found
            Args: 00000000 00000000 00000000 00000000
1: kd> [COLOR=#0000cd]!error[/COLOR] [COLOR=#ff0000]c000009a[/COLOR]
Error code: (NTSTATUS) 0xc000009a (3221225626) - Insufficient system resources exist to complete the API.
1: kd>[COLOR=#0000cd] !niemiro.rawstack[/COLOR]
dps fffff880031e11d8 fffff880031e1d68
fffff880`031e11d8  fffff800`0316a3dc nt!VerifierBugCheckIfAppropriate+0x3c
fffff880`031e11e0  00000000`000000c9
fffff880`031e11e8  00000000`00000215
fffff880`031e11f0  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e11f8  fffff980`058ace10
fffff880`031e1200  00000000`00000000
fffff880`031e1208  fffff800`02d951e8 nt!VfUtilDbgPrint+0x28
fffff880`031e1210  00000000`00000215
fffff880`031e1218  fffff800`0317447a nt!ViErrorFinishReport+0xda
fffff880`031e1220  fffff800`031689f0 nt! ?? ::JKADOLAD::`string'
fffff880`031e1228  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e1230  fffff980`058ace10
fffff880`031e1238  00000000`00000000
fffff880`031e1240  00000000`00000000
fffff880`031e1248  fffff800`031b9030 nt! ?? ::GHGBBCHJ::`string'
fffff880`031e1250  fffff880`031e1288
fffff880`031e1258  00000000`00000000
fffff880`031e1260  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e1268  fffff800`03175483 nt!VfErrorReport1+0x63
fffff880`031e1270  00000000`00000215
fffff880`031e1278  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e1280  fffff980`058ace10
fffff880`031e1288  00000000`ffffffff
fffff880`031e1290  fffff980`058ace10
fffff880`031e1298  fffffa80`0373fe30
fffff880`031e12a0  41746972`706c7543
fffff880`031e12a8  3d207373`65726464
fffff880`031e12b0  38384646`46464620
fffff880`031e12b8  43373534`34343030
fffff880`031e12c0  3d207072`49202c42
fffff880`031e12c8  38394646`46464620
fffff880`031e12d0  31454341`38353030
fffff880`031e12d8  fffff800`000a2e30
fffff880`031e12e0  ffffe202`a6333220
fffff880`031e12e8  00000000`00000001
fffff880`031e12f0  fffffa80`05630240
fffff880`031e12f8  00000000`c000009a
fffff880`031e1300  00000000`00000000
fffff880`031e1308  fffff800`031810b2 nt!VfPnpVerifyIrpStackDownward+0xe2
fffff880`031e1310  fffffa80`0365b6d0
fffff880`031e1318  fffff880`00000008
fffff880`031e1320  fffff880`00000000
fffff880`031e1328  fffff880`00000003
fffff880`031e1330  00000000`00000005
fffff880`031e1338  fffff800`0316ba82 nt!ViIrpDatabaseFindPointer+0x32
fffff880`031e1340  fffffa80`05630010
fffff880`031e1348  fffffa80`05719610
fffff880`031e1350  fffffa80`05630010
fffff880`031e1358  fffff980`058acf70
fffff880`031e1360  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e1368  fffffa80`057a84f0
fffff880`031e1370  fffffa80`056301c8
fffff880`031e1378  fffff800`0316a120 nt!VfMajorVerifyIrpStackDownward+0x80
fffff880`031e1380  fffff980`058acf70
fffff880`031e1388  fffffa80`057f7920
fffff880`031e1390  fffff980`058acf70
fffff880`031e1398  fffff980`058acf70
fffff880`031e13a0  fffffa80`05630240
fffff880`031e13a8  fffffa80`056301c8
fffff880`031e13b0  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e13b8  fffffa80`0373fe30
fffff880`031e13c0  fffffa80`05719610
fffff880`031e13c8  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e13d0  fffffa80`056301c8
fffff880`031e13d8  fffff800`03182b50 nt!IovpCallDriver1+0x4a0
fffff880`031e13e0  fffffa80`057f7920
fffff880`031e13e8  fffffa80`057a84f0
fffff880`031e13f0  fffff980`058ace10
fffff880`031e13f8  fffffa80`056301c8
fffff880`031e1400  fffffa80`056301c8
fffff880`031e1408  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e1410  fffff880`00000001
fffff880`031e1418  fffff880`031e1428
fffff880`031e1420  fffff980`058acf70
fffff880`031e1428  fffffa80`056301c8
fffff880`031e1430  fffffa80`057f7920
fffff880`031e1438  00000000`00000000
fffff880`031e1440  fffff800`02e93260 nt!MiSpecialPool
fffff880`031e1448  00000000`00000000
fffff880`031e1450  00000000`00000000
fffff880`031e1458  fffff880`031e1840
fffff880`031e1460  fffff980`058acfb8
fffff880`031e1468  00000000`00000000
fffff880`031e1470  fffffa80`057f7920
fffff880`031e1478  00000000`00000002
fffff880`031e1480  fffffa80`05719610
fffff880`031e1488  fffff800`03182d86 nt!VfBeforeCallDriver+0x186
fffff880`031e1490  fffffa80`00000000
fffff880`031e1498  fffffa80`00000000
fffff880`031e14a0  fffffa80`00000000
fffff880`031e14a8  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e14b0  fffff880`031e1568
fffff880`031e14b8  fffff800`031732a7 nt!VfIrpAllocateCallDriverData+0x47
fffff880`031e14c0  00000000`00000000
fffff880`031e14c8  fffff880`031e1840
fffff880`031e14d0  fffff980`058acfb8
fffff880`031e14d8  fffffa80`05719610
fffff880`031e14e0  fffffa80`057f7920
fffff880`031e14e8  fffff800`03186bb2 nt!IovCallDriver+0x502
fffff880`031e14f0  fffff980`058ace10
fffff880`031e14f8  00000000`00000002
fffff880`031e1500  fffff980`058ace48
fffff880`031e1508  fffff800`0316ba82 nt!ViIrpDatabaseFindPointer+0x32
fffff880`031e1510  fffffa80`c000009a
fffff880`031e1518  fffff980`058acf70
fffff880`031e1520  00000000`00000000
fffff880`031e1528  00000000`00000000
fffff880`031e1530  fffff880`031e1840
fffff880`031e1538  00000000`00000000
fffff880`031e1540  fffffa80`0571fec0
fffff880`031e1548  fffff880`044457cb BazisVirtualCDBus+0x137cb
fffff880`031e1550  fffff980`058ace10
fffff880`031e1558  00000000`00000002
fffff880`031e1560  fffffa80`0580a940
fffff880`031e1568  fffffa80`05719610
fffff880`031e1570  fffffa80`00000000
fffff880`031e1578  fffff980`058ace10
fffff880`031e1580  fffff980`01508d50
fffff880`031e1588  fffff880`044459e4 BazisVirtualCDBus+0x139e4
fffff880`031e1590  fffff980`01508d50
fffff880`031e1598  fffff880`031e1610
fffff880`031e15a0  fffffa80`056301c8
fffff880`031e15a8  fffff800`03182bcc nt!IovpCallDriver1+0x51c
fffff880`031e15b0  fffffa80`0580a940
fffff880`031e15b8  fffffa80`0580a940
fffff880`031e15c0  fffff880`031e1840
fffff880`031e15c8  00000000`00000000
fffff880`031e15d0  00000000`00000002
fffff880`031e15d8  fffff880`04445949 BazisVirtualCDBus+0x13949
fffff880`031e15e0  fffff980`01508d50
fffff880`031e15e8  fffff880`031e1610
fffff880`031e15f0  fffff980`c000009a
fffff880`031e15f8  fffffa80`0571fe00
fffff880`031e1600  fffff980`058acf70
fffff880`031e1608  00000000`c000009a
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fffff880`031e1618  00000000`00000009
fffff880`031e1620  00000000`00000000
fffff880`031e1628  fffff980`058acf70
fffff880`031e1630  fffff980`00000000
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fffff880`031e1640  fffffa80`0580a940
fffff880`031e1648  fffff880`0444430e BazisVirtualCDBus+0x1230e
fffff880`031e1650  fffff980`01508d50
fffff880`031e1658  fffff980`058ace10
fffff880`031e1660  fffffa80`00000000
fffff880`031e1668  fffffa80`00000001
fffff880`031e1670  fffffa80`0580aa90
fffff880`031e1678  fffff800`0318952a nt!ViFilterDispatchPnp+0x13a
fffff880`031e1680  fffff880`031e1738
fffff880`031e1688  fffff880`0444448f BazisVirtualCDBus+0x1248f
fffff880`031e1690  fffff980`0305afa0
fffff880`031e1698  fffffa80`0580a940
fffff880`031e16a0  fffff980`058ace10
fffff880`031e16a8  fffffa80`0571fe00
fffff880`031e16b0  fffffa80`0580a940
fffff880`031e16b8  fffff800`03186c16 nt!IovCallDriver+0x566
fffff880`031e16c0  fffffa80`0580a940
fffff880`031e16c8  fffff980`058ace10
fffff880`031e16d0  fffff980`058ace10
fffff880`031e16d8  fffff800`0318237e nt!ViFilterAcquireRemoveLock+0x1e
fffff880`031e16e0  fffffa80`05b96e00
fffff880`031e16e8  fffff980`058ace10
fffff880`031e16f0  00000000`00000000
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fffff880`031e1708  fffffa80`0580a850
fffff880`031e1710  fffff980`058ace10
fffff880`031e1718  fffff800`0318952a nt!ViFilterDispatchPnp+0x13a
fffff880`031e1720  fffff980`058acf70
fffff880`031e1728  fffffa80`0580a940
fffff880`031e1730  fffffa80`0580a6e0
fffff880`031e1738  fffffa80`0571fec0
fffff880`031e1740  00000000`00000000
fffff880`031e1748  fffff800`03186c16 nt!IovCallDriver+0x566
fffff880`031e1750  fffff980`058ace10
fffff880`031e1758  00000000`00000002
fffff880`031e1760  fffffa80`0580a6e0
fffff880`031e1768  fffffa80`05b96e00
fffff880`031e1770  fffff980`058ace10
fffff880`031e1778  fffff800`02d3cb82 nt! ?? ::FNODOBFM::`string'+0xac45
fffff880`031e1780  00000000`00000000
fffff880`031e1788  00000000`00000000
fffff880`031e1790  fffff880`031e1840
fffff880`031e1798  fffff800`02ddb5a0 nt!PnpDeviceCompletionRoutine
fffff880`031e17a0  fffffa80`0373fe30
fffff880`031e17a8  fffff800`03099fde nt!PnpAsynchronousCall+0xce
fffff880`031e17b0  fffff980`058ace10
fffff880`031e17b8  fffffa80`05b927b0
fffff880`031e17c0  fffffa80`0580a6e0
fffff880`031e17c8  fffffa80`05b96e00
fffff880`031e17d0  00000000`00000000
fffff880`031e17d8  00000000`00000000
fffff880`031e17e0  fffffa80`0373fe30
fffff880`031e17e8  fffff800`0309a34a nt!PnpQueryDeviceRelations+0xfa
fffff880`031e17f0  00000000`00000000
fffff880`031e17f8  fffffa80`05b927b0
fffff880`031e1800  fffff800`02ddb5a0 nt!PnpDeviceCompletionRoutine
fffff880`031e1808  00000000`00000000
fffff880`031e1810  00000000`00000000
fffff880`031e1818  00000000`00000000
fffff880`031e1820  00000000`00000000
fffff880`031e1828  fffffa80`05b927b0
fffff880`031e1830  00000000`00000002
fffff880`031e1838  fffff800`02cc787b nt!EtwWrite+0x9b
fffff880`031e1840  00000000`0000071b
fffff880`031e1848  00000000`00000000
fffff880`031e1850  00000000`00000000
fffff880`031e1858  00000000`00000000
fffff880`031e1860  00000000`00000000
fffff880`031e1868  00000000`00000000
fffff880`031e1870  00000000`00000000
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fffff880`031e1880  00000000`00000000
fffff880`031e1888  ffffe202`a63337a0
fffff880`031e1890  00000000`00000000
fffff880`031e1898  fffffa80`05b927b0
fffff880`031e18a0  00000000`00000002
fffff880`031e18a8  fffff800`0309c697 nt!PipEnumerateDevice+0x117
fffff880`031e18b0  fffff800`02edf940 nt!PnpDeviceCompletionQueue
fffff880`031e18b8  fffffa80`0373fb60
fffff880`031e18c0  00000000`00000002
fffff880`031e18c8  00000000`00000000
fffff880`031e18d0  fffff880`031e18e0
fffff880`031e18d8  fffff800`0307fd72 nt!PnpDeviceCompletionProcessCompletedRequests+0x32
fffff880`031e18e0  fffff880`031e1918
fffff880`031e18e8  fffff880`00000002
fffff880`031e18f0  fffffa80`037303c0
fffff880`031e18f8  00000000`0000002a
fffff880`031e1900  00000000`00000000
fffff880`031e1908  fffff800`030ccc7c nt!PipProcessDevNodeTree+0x21c
fffff880`031e1910  fffffa80`0373fb60
fffff880`031e1918  fffffa80`03720015
fffff880`031e1920  fffffa80`03721880
fffff880`031e1928  00000000`00000002
fffff880`031e1930  fffffa80`036c29c0
fffff880`031e1938  fffffa80`03708660
fffff880`031e1940  00000000`00fe5522
fffff880`031e1948  fffffa80`037e2f28
fffff880`031e1950  00000000`00000000
fffff880`031e1958  00000000`00000000
fffff880`031e1960  00000000`00000001
fffff880`031e1968  fffff800`00000001
fffff880`031e1970  fffffa80`03721880
fffff880`031e1978  fffffa80`00000000
fffff880`031e1980  fffff880`031e1bd0
fffff880`031e1988  fffffa80`03687cd0
fffff880`031e1990  00000000`00000050
fffff880`031e1998  fffffa80`037d5c80
fffff880`031e19a0  fffffa80`037e2f28
fffff880`031e19a8  fffffa80`037e2000
fffff880`031e19b0  fffffa80`037600b8
fffff880`031e19b8  fffff800`00000050
fffff880`031e19c0  00000000`00000000
fffff880`031e19c8  fffffa80`03b1a718
fffff880`031e19d0  00000000`00000010
fffff880`031e19d8  fffff800`03173adc nt!ViDeadlockCheckStackLimits+0x1c
fffff880`031e19e0  fffffa80`0367b148
fffff880`031e19e8  fffffa80`03708660
fffff880`031e19f0  00000000`00000003
fffff880`031e19f8  00000000`00000000
fffff880`031e1a00  00000000`00000293
fffff880`031e1a08  fffff800`03173dfe nt!ViDeadlockCanProceed+0x7e
fffff880`031e1a10  fffff880`031e1a10
fffff880`031e1a18  fffff880`031dc000
fffff880`031e1a20  fffffa80`056b4270
fffff880`031e1a28  00000000`00000050
fffff880`031e1a30  fffffa80`036774c0
fffff880`031e1a38  fffff800`03174f6d nt!VfDeadlockDeleteMemoryRange+0x1ad
fffff880`031e1a40  00000000`00000050
fffff880`031e1a48  00000000`00000001
fffff880`031e1a50  00000000`00000000
fffff880`031e1a58  00000000`00000000
fffff880`031e1a60  00000000`0000014c
fffff880`031e1a68  fffffa80`056b42c0
fffff880`031e1a70  00000000`00000000
fffff880`031e1a78  00000000`000014c0
fffff880`031e1a80  00000000`00000000
fffff880`031e1a88  00000000`00000000
fffff880`031e1a90  fffffa80`056b4280
fffff880`031e1a98  00000000`00000005
fffff880`031e1aa0  fffffa80`056b4270
fffff880`031e1aa8  00000000`00000002
fffff880`031e1ab0  00000000`00000002
fffff880`031e1ab8  fffff800`0317a870 nt!VfRemLockDeleteMemoryRange+0x30
fffff880`031e1ac0  ffffe202`a63338b0
fffff880`031e1ac8  fffff880`031e2000
fffff880`031e1ad0  00000000`00000000
fffff880`031e1ad8  00000000`00000000
fffff880`031e1ae0  00000000`00000000
fffff880`031e1ae8  00000000`00000000
fffff880`031e1af0  fffffa80`03687cd0
fffff880`031e1af8  00000000`00000001
fffff880`031e1b00  00000000`00000000
fffff880`031e1b08  fffff800`02cc787b nt!EtwWrite+0x9b
fffff880`031e1b10  fffffa80`037c2210
fffff880`031e1b18  fffff800`02e0f000 nt!ExDeferredFreePool+0x1680
fffff880`031e1b20  fffffa80`037ec930
fffff880`031e1b28  00000000`00000000
fffff880`031e1b30  fffff800`02e1b500 nt!KMPnPEvt_SystemStartPnPEnum_Start
fffff880`031e1b38  00000000`00000000
fffff880`031e1b40  ffffe202`a6333940
fffff880`031e1b48  00000000`00000000
fffff880`031e1b50  00000000`00000000
fffff880`031e1b58  fffffa80`03687cd0
fffff880`031e1b60  00000000`00000001
fffff880`031e1b68  00000000`00000000
fffff880`031e1b70  fffffa80`03687cd0
fffff880`031e1b78  fffff800`030cd1ac nt!PiProcessStartSystemDevices+0x7c
fffff880`031e1b80  fffff800`02edd500 nt!PnpDeviceEnumerationWorkItem
fffff880`031e1b88  00000000`00000000
fffff880`031e1b90  00000000`00000000
fffff880`031e1b98  00000000`00000000
fffff880`031e1ba0  00000000`00000000
fffff880`031e1ba8  fffffa80`00000000
fffff880`031e1bb0  fffffa80`00000000
fffff880`031e1bb8  00000000`00000000
fffff880`031e1bc0  00000000`00000000
fffff880`031e1bc8  fffff800`02dddec2 nt!PnpDeviceActionWorker+0x302
fffff880`031e1bd0  00000001`00000003
fffff880`031e1bd8  00000000`00000000
fffff880`031e1be0  00000000`32706e50
fffff880`031e1be8  00000000`00000084
fffff880`031e1bf0  00000000`00000000
fffff880`031e1bf8  fffff8a0`00540170
fffff880`031e1c00  00000000`00000001
fffff880`031e1c08  00000000`00000000
fffff880`031e1c10  00000000`00000001
fffff880`031e1c18  00000000`00000000
fffff880`031e1c20  fffffa80`03708660
fffff880`031e1c28  00000000`00000000
fffff880`031e1c30  00000000`00000001
fffff880`031e1c38  00000000`00000000
fffff880`031e1c40  00000000`00000001
fffff880`031e1c48  fffff800`02edd500 nt!PnpDeviceEnumerationWorkItem
fffff880`031e1c50  00000000`00000000
fffff880`031e1c58  fffffa80`03708660
fffff880`031e1c60  fffff800`02e812d8 nt!ExWorkerQueue+0x58
fffff880`031e1c68  fffff800`02ced641 nt!ExpWorkerThread+0x111
fffff880`031e1c70  fffff800`02dddbc0 nt!PnpDeviceActionWorker
fffff880`031e1c78  fffff800`02fd6501 nt!ObpWaitForMultipleObjects+0x47b
fffff880`031e1c80  fffffa80`03708600
fffff880`031e1c88  00000000`00000000
fffff880`031e1c90  fffff880`031e1ca0
fffff880`031e1c98  00000000`00000001
fffff880`031e1ca0  fffff800`02edd500 nt!PnpDeviceEnumerationWorkItem
fffff880`031e1ca8  00000000`00000000
fffff880`031e1cb0  00000000`00000000
fffff880`031e1cb8  00000000`00000000
fffff880`031e1cc0  ffffe202`a6333c20
fffff880`031e1cc8  00000000`00000000
fffff880`031e1cd0  fffff880`009f2ec0
fffff880`031e1cd8  00000000`00000000
fffff880`031e1ce0  fffff800`02ced530 nt!ExpWorkerThread
fffff880`031e1ce8  00000000`00000001
fffff880`031e1cf0  00000000`00000001
fffff880`031e1cf8  fffff800`02f7ae5a nt!PspSystemThreadStartup+0x5a
fffff880`031e1d00  00000000`00000000
fffff880`031e1d08  fffffa80`03708660
fffff880`031e1d10  00000000`00000080
fffff880`031e1d18  fffffa80`036ef040
fffff880`031e1d20  fffffa80`036ef040
fffff880`031e1d28  00000000`00000000
fffff880`031e1d30  00000000`00000000
fffff880`031e1d38  fffff800`02cd4d26 nt!KiStartSystemThread+0x16
fffff880`031e1d40  fffff880`009ee180
fffff880`031e1d48  fffffa80`03708660
fffff880`031e1d50  fffff880`009f8f40
fffff880`031e1d58  00000000`00000000
fffff880`031e1d60  00000000`00000000
fffff880`031e1d68  00000000`00000000
1: kd>[COLOR=#0000cd] lmvm[/COLOR] [COLOR=#ff0000]BazisVirtualCDBus[/COLOR]
start             end                 module name
fffff880`04432000 fffff880`04467000   BazisVirtualCDBus T (no symbols)           
    Loaded symbol image file: BazisVirtualCDBus.sys
    Image path: \SystemRoot\system32\DRIVERS\BazisVirtualCDBus.sys
    Image name: BazisVirtualCDBus.sys
    Timestamp:       [COLOR=#ff0000] Mon Aug 08 14:11:12 2011[/COLOR] (4E4026C0)
    CheckSum:         00037199
    ImageSize:        00035000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4
Hi there.

I removed the program Wincdemu and now I'm using VirtualClonedrive instead, I hope this solves part of the problem.

As for the rest of the stuff, well, I have to find some time to test everything out, and turn on verifier again.

I'll be back when I gather more dumps and log files, I'll post it here.

Thanks for the help Vin Gnarus.
Thanks Vir Gnarus!

Have you run the Hardware Diagnostics that I suggested earlier? In particular I'm interested in the results of the Memory Diagnostic ( Memory Diagnostics ) There's still a chance that this is hardware related - and it may be due to that faulty webcam (this is just a hunch on my part - not a firm diagnosis).

I'm also concerned with the nVidia System Management utility - as I don't believe it's supported on Win7/8 systems. If possible, please un-install it. If you're unable to un-install it, please:
- download a fresh set of nVidia chipset drivers from
- un-install the current chipset drivers from Control Panel...Programs...Un-install a program
- install the freshly downloaded chipset drivers
- monitor for further BSOD's

As for the other drivers in red, please try to update them but don't stress over them for now.

Please update these older drivers. Links are included to assist in looking up the source of the drivers. If unable to find an update, please remove (un-install) the program responsible for that driver. DO NOT manually delete/rename the driver as it may make the system unbootable! :

ATK64AMD.sys Tue May 12 21:04:54 2009 (4A0A1CB6)
ATK Hotkey ATK0101 ACPI UTILITY Driver

nvsmu.sys Mon Jun 29 03:36:37 2009 (4A486F05)
nVidia nForce System Management Controller (nVidia nForce chipset driver)

ETD.sys Wed Jul 8 23:11:40 2009 (4A555FEC)
ELAN PS/2 Port Smart Pad

kbfiltr.sys Mon Jul 20 05:21:42 2009 (4A643726)
Dritek Keyboard Filter Driver

The following is for informational purposes only.
[FONT=lucida console]**************************Tue Feb  5 08:48:16.576 2013 (UTC - 5:00)**************************
Loading Dump File [C:\Users\Owner\SysnativeBSODApps\020513-21871-01.dmp]
Windows 7 Kernel Version 7601 (Service Pack 1) MP (2 procs) Free x64
Built by: [B]7601[/B].17944.amd64fre.win7sp1_gdr.120830-0333
System Uptime:[B]0 days 0:00:12.511[/B]
*** WARNING: Unable to verify timestamp for BazisVirtualCDBus.sys
*** ERROR: Module load completed but symbols could not be loaded for BazisVirtualCDBus.sys
Probably caused by :[B]BazisVirtualCDBus.sys ( BazisVirtualCDBus+137cb )[/B]
BugCheck [B]C9, {215, fffff880044457cb, fffff980058ace10, 0}[/B]
Arg1: 0000000000000215, A non-successful non-STATUS_NOT_SUPPORTED IRP status for IRP_MJ_PNP is being
    passed down stack. Failed PNP IRPs must be completed.
Arg2: fffff880044457cb, The address in the driver's code where the error was detected.
Arg3: fffff980058ace10, IRP address.
Arg4: 0000000000000000
BUGCHECK_STR:  0xc9_215
FAILURE_BUCKET_ID: [B]X64_0xc9_215_VRF_BazisVirtualCDBus+137cb[/B]

3rd Party Drivers:
The following is for information purposes only.
Any drivers in red should be updated or removed from your system. And should have been discussed in the body of my post.
[FONT=lucida console]**************************Tue Feb  5 08:48:16.576 2013 (UTC - 5:00)**************************
[COLOR=RED][B]ATK64AMD.sys                Tue May 12 21:04:54 2009 (4A0A1CB6)[/B][/COLOR]
[COLOR=RED][B]nvsmu.sys                   Mon Jun 29 03:36:37 2009 (4A486F05)[/B][/COLOR]
[COLOR=RED][B]ETD.sys                     Wed Jul  8 23:11:40 2009 (4A555FEC)[/B][/COLOR]
intelppm.sys                Mon Jul 13 19:19:25 2009 (4A5BC0FD)
[COLOR=RED][B]kbfiltr.sys                 Mon Jul 20 05:21:42 2009 (4A643726)[/B][/COLOR]
RTKVHD64.sys                Tue Jul 28 09:00:05 2009 (4A6EF655)
nvstor64.sys                Wed Jul 29 19:41:24 2009 (4A70DE24)
Rt64win7.sys                Thu Jul 30 07:58:43 2009 (4A718AF3)
PxHlpa64.sys                Tue Oct 20 14:08:42 2009 (4ADDFCAA)
amdxata.sys                 Fri Mar 19 12:18:18 2010 (4BA3A3CA)
tap0901.sys                 Thu Aug 19 18:07:59 2010 (4C6DAB3F)
athrx.sys                   Tue Jun 21 04:03:39 2011 (4E00505B)
cnnctfy2.sys                Fri Jun 24 11:29:01 2011 (4E04AD3D)
BazisVirtualCDBus.sys       Mon Aug  8 14:11:12 2011 (4E4026C0)
MpFilter.sys                Thu Aug 23 19:03:14 2012 (5036B6B2)
nvlddmkm.sys                Tue Oct  2 14:21:13 2012 (506B3099)
Last edited:
Hi, thanks for the feedback.

1) Your link to memory diganostics, I don't know what to do, there are so many tools. I'm not sure which particular one to run. And how to gather any information so I can post it to you.

2) nvidia chipset drivers, I don't know which version do I have, or where should I look for it. I'm not sure how to download the new drivers (Though I am familiar how to download drivers for my graphics card, but dunno about chipset)

3) I can't update my drivers, there are no new drivers for my type of laptop. It's a series which came out 2009. I always try to have the latest drivers, but if they aren't offered on asus drivers web site, there is nothing I can do.

4) As for the above mentioned (in red) drivers, I'm not sure if I'm supposed to remove them. They were installed from the internet (asus site) and they are asus related drivers (keyboard...etc.) Not sure what are you trying to accomplish by removing drivers that are necesseary to run on my laptop

Thanks for the info though. I'm looking forward for your reply, so I can continue with research. Especially the memory one.
First off - quite often the diagnosis reached by using Driver Verifier is the fix that you need - so all of this may not be needed if the system doesn't BSOD again. But Vir Gnarus is uncertain if this is truly the cause, so we have to be prepared for other possibilities.

Memory diagnostics (feel free to ask for clarification of any step):
- use MemTest86+
- burn it to a CD (copying will not do, it must be done using an ISO burner)
- boot from the CD
- let it run until the "Passes" number reaches 3 If RED shows up in the bottom ½ of the screen (these are errors), feel free to stop the test then.

We can assist with finding more current drivers. For the nVidia chipset drivers though, I can't seem to locate any drivers at the nVidia website. So you're likely stuck with what Asus has to offer there.

My concern about drivers relates to their age. These drivers (the one's in RED) are from before the time that SP1 came out. While many drivers from before the period might be SP1 compatible, it's best to try and update them to be sure. If none are available, then you just can't update them. As the nvsmu.sys driver was my main concern, I'd say that being unable to update the others probably isn't an issue at this time (as I've seen no other issues with those drivers in other BSOD topics).

Finally, I'm not asking you to remove essential drivers. IMO the only one of the 4 drivers that I mentioned that is essential is the nvsmu.sys driver (and I asked that you replace it - not remove it).
Back again.

I ran the memtest86+ for 2 hours, It got 1 Pass, after that I let it run for another 100% percent to get to Pass 2, but it just hanged at 100% (It didn't register Pass 2, it just continued with the tests (lower loading bar) anyway while the upper first bar hanged at 100%) so I decided to shut it down because my laptop got pretty warm. There were no errors.

As for the drivers, well I did some research and downloaded PC wizard 2012 from this site: CPUID - System & hardware benchmark, monitoring, reporting , with it I managed to find my chipset model under motherboard section. (nForce 730i)

So I downloaded the latest drivers they had on their web site. (It took me an hour to figure everything out.) Link: NVIDIA DRIVERS 15.56WHQL

In the mean time I figured that there was an newer graphics card driver version out, so I downloaded that to (current version 310.90).

As for the bluetooth driver, there is nothing I can do. I have this no name brand dongle and used it trough the "blue bluetooth icon" in the taskbar for sending and receiving files from and to my mobile phone.

After all this "driver" jobs, I tried to enable verifier again with all the settings that I used last time. I restarted my laptop twice, but nothing happened. There were no BSOD's. So I turned the verifier off.

Any suggestions on what should I do next ?
Last edited:
Sounds like you've done a good job.
Now we wait for further BSOD's. If they happen, zip up and upload the contents of C:\Windows\Minidump so we can see what the new one's say.
It's best to keep Driver Verifier on for the duration of the troubleshooting period. Once we have determined the symptoms have disappeared and the problem solved then we can turn it off unless otherwise specified (like in the rare case DV actually cause symptoms to cease).
It's best to keep Driver Verifier on for the duration of the troubleshooting period. Once we have determined the symptoms have disappeared and the problem solved then we can turn it off unless otherwise specified (like in the rare case DV actually cause symptoms to cease).

Hi, I did turn on verifier again. As soon as something comes up, I'll collect the info and post it here. Maybe even add an screenshot if I remeber to take one.
I have a quick question. Is it possible that because of driver verifier being turned on, my sound could get a little laggy. For example when I'm listening to some music, at some point the music laggs a second or two and then goes back to normal speed. Also I can hear here and there some kind of fuzzy-ing in the sound.

Should I be worried or?
Sorry, posted in the wrong field.

The fuzzy sound I'm not sure, but it may be because of lack of shielding which means interference from the hard drive or an optical drive can cause some low static sounds. As for the lag, Driver Verifier causes Windows to become a lot more paranoid about what drivers do, which means a lot of I/O like audio can become laggy because of the extra checks. If you are not experiencing any of the problematic symptoms that gave you incentive to post here, and feel confident the issue has been resolved, then we can turn off Driver Verifier and check further to see if it still occurs. Again, there's always the rare occasion of Driver Verifier actually relieving the symptoms rather than force them to occur.

Has there been any new occurrences since then?
Sorry, posted in the wrong field.

The fuzzy sound I'm not sure, but it may be because of lack of shielding which means interference from the hard drive or an optical drive can cause some low static sounds. As for the lag, Driver Verifier causes Windows to become a lot more paranoid about what drivers do, which means a lot of I/O like audio can become laggy because of the extra checks. If you are not experiencing any of the problematic symptoms that gave you incentive to post here, and feel confident the issue has been resolved, then we can turn off Driver Verifier and check further to see if it still occurs. Again, there's always the rare occasion of Driver Verifier actually relieving the symptoms rather than force them to occur.

Has there been any new occurrences since then?

Hello, thanks for the answer.

I turned off verifier a day ago because nothing really happened, no bsod's, except for the sound lag while listening to music. I think that everything is ok for now.
Maybe its because I installed the new motherboard drivers (nForce). Don't know really. I can't be really sure if it's really over. This kind of thing usually happens while I'm gaming or most of the time while watching series and tv shows online (stream).

In the past few days I watched some fair amount of things and nothing happened, videos played nicely and no BSOD's showed up.
I hope that It will continue that way. If you are urgent to close this thread and make it final (solved) you can close it, but if something comes up accidentally, am I going to be able to post my problem on this place again or not?
I recommend running it through the usual activities. It's up to your discretion whether you wish to label it as solved or not.
So after some time, I got a few more BSOD's, this time one was related to a direct x problem, and the other one is driver not less or equal thing but with an error code similar to this -> 0x000000000A which clearly means nothing to me.

I ran the W7F diagnostic tool and attached it to the post. I hope they shed some light on the problem at hand.

Thanks in advance for any help!

P.S. - I wasn't able to attach my zip to the post because of an unknown IO error. The folder has about 24 mb and when zipped about 1,8mb. I checked how much free space I have on this forum and I have more than 5mb left. So I decided to upload my zip file to speedyshare, here is the link - >>> - Speedy Share - upload your files here
Can you upload to some other site? I'm leery of that one. is typically a good one since it uploads to a number of more reputable sites.

Also, you'll want Driver Verifier on again, and let it produce more crashes for us to read crashdumps from. Thanks.
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