At work we start all repairs with a set of diagnostics. Often they find problems that weren't even expected. It's a waste of time to try to fix software on a system that has hardware problems (I suspect a hardware problem in your case).
Please try these free diagnostics for starters: Initial Hardware Diagnostics
[font=lucida console]**************************Fri Mar 29 22:01:42.255 2013 (UTC - 4:00)**************************
Loading Dump File [C:\Users\Owner\SysnativeBSODApps\032913-27627-01.dmp]
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Built by: [B]7601[/B].18044.amd64fre.win7sp1_gdr.130104-1431
System Uptime:[B]0 days 5:40:13.800[/B]
Probably caused by :[B]win32k.sys ( win32k!W32pArgumentTable+6220b )[/B]
BugCheck [B]50, {fffff95dc085f098, 1, fffff96000197b27, 5}[/B]
BugCheck Info: [url=http://www.carrona.org/bsodindx.html#0x00000050]PAGE_FAULT_IN_NONPAGED_AREA (50)[/url]
Arguments:
Arg1: fffff95dc085f098, memory referenced.
Arg2: 0000000000000001, value 0 = read operation, 1 = write operation.
Arg3: fffff96000197b27, If non-zero, the instruction address which referenced the bad memory
address.
Arg4: 0000000000000005, (reserved)
BUGCHECK_STR: 0x50
DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULT
PROCESS_NAME: Skype.exe
FAILURE_BUCKET_ID: [B]X64_0x50_win32k!W32pArgumentTable+6220b[/B]
BIOS Version F4
BIOS Release Date 10/19/2012
Manufacturer Gigabyte Technology Co., Ltd.
Product Name GA-78LMT-USB3
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
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[font=lucida console]**************************Fri Mar 29 22:01:42.255 2013 (UTC - 4:00)**************************
amdxata.sys Fri Mar 19 12:18:18 2010 (4BA3A3CA)
Rt64win7.sys Wed Feb 16 04:03:57 2011 (4D5B92FD)
lvuvc64.sys Wed Jan 18 01:41:08 2012 (4F166984)
RTKVHD64.sys Tue Jun 19 04:50:56 2012 (4FE03D70)
EtronXHCI.sys Tue Jul 3 07:00:15 2012 (4FF2D0BF)
EtronHub3.sys Tue Jul 3 07:00:21 2012 (4FF2D0C5)
avgfwd6a.sys Tue Sep 4 04:31:15 2012 (5045BC53)
avgrkx64.sys Thu Sep 13 20:41:40 2012 (50527D44)
avgloga.sys Thu Sep 20 21:23:51 2012 (505BC1A7)
avgtdia.sys Thu Sep 20 21:25:33 2012 (505BC20D)
avgldx64.sys Mon Oct 1 21:05:50 2012 (506A3DEE)
avgidsha.sys Sun Oct 14 21:22:54 2012 (507B656E)
avgidsdrivera.sys Mon Oct 22 06:47:11 2012 (5085242F)
avgmfx64.sys Thu Nov 15 17:03:50 2012 (50A566C6)
nvhda64v.sys Wed Dec 19 00:41:41 2012 (50D15395)
nvlddmkm.sys Sat Feb 9 18:13:08 2013 (5116D804)
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