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Random BSOD errors (mostly SYSTEM_SERVICE_EXCEPTION)

I built a new system on August 11. Since then I've experienced seven blue screens of death:

One on August 15 (SYSTEM_SERVICE_EXCEPTION, error code 3b), occurred while launching Mass Effect.

One on August 16 (SYSTEM_SERVICE_EXCEPTION, error code 3b), occurred while launching Mass Effect 2.

One on August 26 (PAGE_FAULT_IN_NONPAGED_AREA, error code 50), occurred while alt+tabbing out of Team Fortress 2.

A second on August 26 (IRQL_NOT_LESS_OR_EQUAL, error code a), occurred while I was not home and the computer was idle.

One on August 29 (SYSTEM_SERVICE_EXCEPTION, error code 3b), occurred about a minute after turning off Team Fortress 2.

One on August 31 (SYSTEM_SERVICE_EXCEPTION, error code 3b), occurred while alt+tabbing out of Team Fortress 2.

One on September 1 (SYSTEM_SERVICE_EXCEPTION, error code 3b), occurred while launching Mass Effect 3.

I've used BlueScreenView and WhoCrashed and found that ntoskrnal.exe is highlighted in red for every crash, and win32k.sys is highlighted in four of them. cdd.dll and nvlddmkm.sys are highlighted in the August 31 crash.

As you can see, the errors almost always involve launching, closing, or alt+tabbing from a fullscreen game. I have yet to encounter a bluescreen while actually playing a game. Additionally, an nVidia graphics driver (nvlddmkm.sys) was marked as a potential problem in one of the crashes. So I reinstalled my graphics drivers on August 31, but got another crash yesterday.

I ran Windows Memory Diagnostic and chkdsk and found no errors.

When I ran sfc /scannow, I found that a file called iassdo.dll.mui is corrupt. I found several other people encountering this problem but couldn't find anyone who can tell me what this file actually does or how to repair it. Many people said that trying to copy or repair from the Windows disc does not fix the problem.

I can upload the .dmp files if necessary, just tell me the best place to do so.
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More about random bsod errors system service exception
  1. Best answer
    look this you find your answer pirated software on your system windows protection http://www.overclock.net/t/950625/sfc-scannow-corupted-files-w7-updated
  2. scout_03 said:
    look this you fiind your answer pirated software on your system windows protection http://www.overclock.net/t/950625/sfc-scannow-corupted-files-w7-updated


    Asking for help with pirated software is against board rules and if this is the case there will be consequences.
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PAGE_FAULT_IN_NONPAGED_AREA Blue Screen SYSTEM_SERVICE_EXCEPTION Windows 7 IRQL_NOT_LESS_OR_EQUAL