Random Windows 7 BSOD

After all this time, I can only conclude, that the problem has to be BIOS settings or hardware. Here are all my Bios settings. All help is appreciated.

*Click*

Please remove any CD virtualization programs such as Daemon Tools and Alcohol 120%. They use a driver, found in your dmp, sptd.sys, that is notorious for causing BSODs. Use this SPTD uninstaller when you're done: DuplexSecure - Downloads

Code:

sptd.sys     Wed Apr 07 21:29:00 2010

BSOD BUGCHECK SUMMARY

Code:

Built by: 7600.16539.amd64fre.win7_gdr.100226-1909
Debug session time: Thu Jun 10 04:04:39.834 2010 (GMT-4)
System Uptime: 0 days 1:04:32.865
BugCheck 1A, {403, fffff6800000d418, d580000094b95867, ff7ff6800000d418}
Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+31f32 )
BUGCHECK_STR:  0x1a_403
PROCESS_NAME:  svchost.exe
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
Built by: 7600.16539.amd64fre.win7_gdr.100226-1909
Debug session time: Wed Jun  9 05:49:35.970 2010 (GMT-4)
System Uptime: 0 days 3:49:32.000
BugCheck 1A, {41201, fffff680000017a0, 9240000097395867, fffffa800800e850}
Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+13bb2 )
BUGCHECK_STR:  0x1a_41201
PROCESS_NAME:  SearchProtocol
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
Built by: 7600.16539.amd64fre.win7_gdr.100226-1909
Debug session time: Mon May 24 13:04:08.902 2010 (GMT-4)
System Uptime: 1 days 9:33:09.933
BugCheck 1A, {403, fffff68000092b78, b250000114b95867, ff7ff68000092b78}
Probably caused by : win32k.sys ( win32k!SURFACE::bDeleteSurface+3c8 )
BUGCHECK_STR:  0x1a_403
PROCESS_NAME:  Steam.exe
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨

Did you use the uninstaller as recommended by Jonathan?

theone320 said:

I once tried uninstalling Daemon-Tools and SPTD, but it still Bluescreened. So I ruled it out as the problem.

Your troubleshooting ... dont assume anything ... uninstall it as JK suggested, you can always reinstall it..