What's causing this BSOD (0x50, 0x1a, 0x7f)?

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  1. Posts : 49
    Windows 7 Home Premium 64bit
       #1

    What's causing this BSOD (0x50, 0x1a, 0x7f)?


    I've experiencing the Blue Screen of Death errors recently
    I followed the posting steps and attached the .zip files on this thread
    All help will be appreciated
      My Computer


  2. Posts : 1,436
    Windows 8.1 Pro x64
       #2

    Hello, Welcome to SF!

    Code:
    Probably caused by :memory_corruption ( nt!MiAgeWorkingSet+1d1 ) 
    BugCheck 50, {fffff6837f7e0df8, 0, fffff80002c7e55b, 5} 
    BugCheck Info: PAGE_FAULT_IN_NONPAGED_AREA (50)
    BugCheck 50 can actually be caused by quite a lot of things. Memory, device drivers, corrupt installs, and anti-virus.

    After looking at the MSINFO32 file, I found this line:
    Code:
    Security Processor Loader Driver	ROOT\LEGACY_SPLDR\0000	This device is not present, is not working properly, or does not have all its drivers installed.
    This basically means that the anti-virus you currently have is corrupt. From the looks of it, you are just using Windows Defender:
    Code:
    msmpeng.exe	c:\program files\microsoft security client\msmpeng.exe
    I suggest disabling it(you can follow this tutorial: Windows Defender - Turn On or Off), as it also has some application errors, and just installing Download Microsoft Security Essentials from Official Microsoft Download Center

    This is weird to me because I have never seen a problem with Windows Defender before, but that does not mean it isn't possible.

    And to be on the safe side, lets run a RAM - Test with Memtest86+
       Tip
    Run Memtest86 for a minimum of 8 passes


    Post back results.
    -Justin
      My Computer


  3. Posts : 49
    Windows 7 Home Premium 64bit
    Thread Starter
       #3

    That's weird...I tried to turn off Windows Defender, but it was already off, and I got MSE installed already.
    *about to run a RAM memtest*

    EDIT: I might run it overnight while I'm sleeping since it takes a long time to finish

    I really hope my RAM is fine. I don't feel like testing my motherboards
      My Computer


  4. Posts : 1,436
    Windows 8.1 Pro x64
       #4

    If you already have it installed, then I suggest reinstalling it with a fresh downloaded copy.
      My Computer


  5. Posts : 49
    Windows 7 Home Premium 64bit
    Thread Starter
       #5

    I double checked the Windows Defender issue and found out that the Administrator setting is still checked (it was "off" because I have MSE installed)...silly me

    I re-installed MSE and it is currently updating. I hope this permanently solves the issue

    NOTE: I have no BSODs so far today even before doing something with Windows Defender and MS Essentials

    Thanks for your help!!!
      My Computer


  6. Posts : 49
    Windows 7 Home Premium 64bit
    Thread Starter
       #6

    UPDATE: Just got a BSOD error...
      My Computer


  7. Posts : 1,436
    Windows 8.1 Pro x64
       #7

    Once you did all of the above, did you restart your computer?

    Have you ran a Memtest yet?
      My Computer


  8. Posts : 49
    Windows 7 Home Premium 64bit
    Thread Starter
       #8

    I haven't ran a memtest (planning on doing it tonight)
    I don't remember restarting after re-installing MSE.
    Is there anything that's different about the latest BSOD error, or is it still about my anti-virus programs?
      My Computer


  9. Posts : 1,436
    Windows 8.1 Pro x64
       #9

    It's showing all the above possible errors, I am going to look at them in detail here soon.

    -Justin
      My Computer


  10. Posts : 49
    Windows 7 Home Premium 64bit
    Thread Starter
       #10

    Im doing the memtest right now (typing this using my phone)
      My Computer


 
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