Hello, I have 64-bit Windows 7 Professional. I had the beta recently and encountered BSoDs to, but that was very rare. After buying it and installing a clean Windows 7 Professional installation, the bluescreens have gotten worse and I cannot pinpoint why they are occuring. It can appear a bluescreen when I do absolutly nothing, just watching the dekstop while being afk. I looked at the minidumps with windbg, and they all said difftent thing was the cause of error. This is what they said: Probably caused by : ntkrnlmp.exe ( nt!AlpcpQueueIoCompletionPort+195 ) Probably caused by : ntkrnlmp.exe ( nt!KiTimerWaitTest+2b3 ) Probably caused by : ntkrnlmp.exe ( nt!KiProcessExpiredTimerList+103 ) Probably caused by : ntkrnlmp.exe ( nt!IoRemoveIoCompletion+9f ) Probably caused by : ntkrnlmp.exe ( nt!KiSystemServiceExit+0 ) Probably caused by : ntkrnlmp.exe ( nt!ExAllocatePoolWithTag+53d ) Probably caused by : ntkrnlmp.exe ( nt!ExAllocatePoolWithTag+53d ) Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+460da ) Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+42c75 ) Probably caused by : cng.sys ( cng!GatherRandomKey+294 ) Probably caused by : memory_corruption ( nt!MiVolunteerForTrimFirst+68 ) Probably caused by : memory_corruption ( nt!MiInsertNode+a7 ) Probably caused by : memory_corruption ( nt!MiBadShareCount+4c ) Probably caused by : memory_corruption ( nt!MiIdentifyPfn+317 ) Probably caused by : Pool_Corruption ( nt!ExDeferredFreePool+233 ) Probably caused by : NETIO.SYS ( NETIO!FsbAllocate+71 ) Probably caused by : NETIO.SYS ( NETIO!RtlReturnTimerWheelEntry+18c ) Probably caused by : HIDCLASS.SYS ( HIDCLASS!WppAutoLogTrace+108 ) Probably caused by : Rt64win7.sys ( Rt64win7+11256 ) Probably caused by : Rt64win7.sys ( Rt64win7+118e9 ) As you can see, I have had a bunch of bluescreens related to memory and some to network (the Rt64win7.sys). I installed the newest Windows 7 drivers for Realtek RTL8111B from Realteks website because it was newer then the one I had installed. I havent recieved the Rt64win7.sys bluescreen after that, but I have no idea if it actually helped. It might just be a coincidense. I had the other bluescreens after I updated that driver, so it didnt help against the rest. I have no idea wtf is going on. I ran both Memtest86 and Windows Memory Diagnostics at startup, without finding any errors on my memory. I have newest updates on Windows Update and have no antivirus software installed. I have no problems except for these BSoDs that occur at random from my point of view. Sometimes more then once on a day, sometimes with several days passing before any bluescreen appear. So.. You think you can help me out here? Dont really know what do to. perfmon /report report this: I dont really know what its refering to. Here is more details: Hardware Device and Driver Checks Failed bayimg - image: Failed.PNG - free uncensored image hosting I ran the event viewer and exported the error and warnings to a file that im attatching. Perhaps it can be usefull somehow? Im not good enough to make any conclusions of it. My system setup: Silverstone Nightjar ST30NF 300W PSU DualCore Intel Core 2 Duo E4400, 2000 MHz (10 x 200) (not overclocked) ASRock 4Core1333-FullHD (Their newest bios from the website. ver 1.70) 4GB Ram (2x OCZ Reaper HPC OCZ2RPR800C42G - 2 GB DDR2-800 DDR2 SDRAM) Gigabyte Radeon HD 4850 (Driver version 8.702.0.0, not overclocked) One SAMSUNG HD103UJ ATA Device (1000 GB, 7200 RPM, SATA-II) Two Seagate Barracuda ST3250823AS ATA Device (250 GB, 7200 RPM, SATA) Standard keyboard and LD DVD-rom Logitech MX610 mouse (Standars Windows 7 driver) Asus EEE controller (Driver from Install CD) Brother DCP-7010 USB Printer (Standars Windows 7 driver) Software I have installed: Google Chrome FoxIt PDF Reader Microsoft Office 2003 utorrent Everest Ultimate Trial Edition Malwarebytes' Anti-Malware Voddler GOM Player Power ISO Starcraft II Beta Steam Skype (v 188.8.131.52) 32-bit DXDiag reports no error, 64-bit DXDiag says this: Thats basicly it... I dont know how to get rid of the bluescreens. Help me please!