Enable or Disable BSOD Crash on Ctrl+Scroll Lock in Windows  

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    Enable or Disable BSOD Crash on Ctrl+Scroll Lock in Windows

    Enable or Disable BSOD Crash on Ctrl+Scroll Lock in Windows

    How to Enable or Disable BSOD Crash on Ctrl+Scroll Lock in Windows
    Published by Category: BSOD
    11 Jan 2020
    Designer Media Ltd

    How to Enable or Disable BSOD Crash on Ctrl+Scroll Lock in Windows


    A blue screen error (also called a stop error) can occur if a problem causes your PC to shut down or restart unexpectedly (aka: crash). When you experience this type of error, you won’t be able to see things like the Start menu or the taskbar on the screen when your PC is turned on. Instead you might see a blue screen with a message that your PC ran into a problem and needs to restart.

    Windows has a hidden feature that you can enable to be able to manually force a BSOD by holding down the rightmost Ctrl key, and press the Scroll Lock key twice.

    When used, the system calls KeBugCheck and issues bug check 0xE2 (MANUALLY_INITIATED_CRASH). Unless crash dumps have been disabled, a crash dump file is written at this point.

    Reference: Forcing a System Crash from the Keyboard - Windows 10 hardware dev

    This tutorial will show you how to enable or disable to manually force a BSOD crash on Ctrl+Scroll Lock in Vista, Windows 7, Windows 8, and Windows 10.

    You must be signed in as an administrator to be able to enable or disable the BSOD crash on Ctrl+Scroll Lock feature.

    The downloadable .reg files below will add and modify the DWORD value in the registry keys below.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\kbdhid\Parameters

    CrashOnCtrlScroll DWORD

    (delete) = Disable
    1 = Enable



    EXAMPLE: BSOD Stop Code: MANUALLY_INITIATED_CRASH
    Enable or Disable BSOD Crash on Ctrl+Scroll Lock in Windows-windows_10_manually_initiated_bsod.jpg



    Here's How:

    1 Do step 2 (enable) or step 3 (disable) below for what you would like to do.


    2 To Enable BSOD Crash on Ctrl+Scroll Lock

    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Enable_BSOD_CrashOnCtrlScroll.reg

    Download


    3 To Disable BSOD Crash on Ctrl+Scroll Lock

    This is the default setting.

    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Disable_BSOD_CrashOnCtrlScroll.reg

    Download


    4 Save the .reg file to your desktop.

    5 Double click/tap on the downloaded .reg file to merge it.

    6 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

    7 Restart the computer to apply.

    8 You can now delete the downloaded .reg file if you like.


    That's it,
    Shawn






  1. Posts : 13
    Windows 10 Home Edition
       #1

    I have no Scroll Lock key on my keyboard (like most of us with a laptop I guess)

    So I am trying to use the crashdump registry key with the 2 subkeys Dump1Keys and Dump2Key to define a custom keyboard shortcut for this feature.

    But this does not work.
    I defined Dump1Keys to 0x11 (left and right shift) and Dump2Key to 0x52 (Insert key).

    Am I wrong with key code ? The MS doc is not really crystall clear on this.
      My Computer


  2. Posts : 13
    Windows 10 Home Edition
       #2

    So I re-read the instructions carefully and I find out my error.

    You need to use the index of the table provided as Dump2Key value. Sight!! So now I use 0x64 (100) for Insert.

    And check also the type of your keyboard in Device Manager (there is PS/2 keyboard on laptops). Mine was PS/2 and I needed to use i802prt key.

    ... But, this is still not working for me.
      My Computer


  3. Posts : 68,543
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #3

    Hello THNU85DC3sd, :)

    I'm not sure this will work with any other key combination.

    Did you restart the computer afterwards to apply?
      My Computers


  4. Posts : 13
    Windows 10 Home Edition
       #4

    Yes, I rebooted every time.

    So I get it working.
    First the index of the table starts at 0, so I must have used 0x63. But 2 shift keys + insert did not work. I don't know why.

    So I used ctrl+Alt+U (Dump1Keys=0x60 and Dump2Key=0x17) and it worked that way.

    Hint: You have to press twice the key. Like ctrl-alt then u-u rapidly.
      My Computer


  5. Posts : 68,543
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #5

    Great news.
      My Computers


  6. Posts : 197
    Windows 11 Home
       #6

    Hey Shawn,

    Why would someone want to do this?

    I guess I am wondering why this function exists.

    Thanks!
      My Computer


  7. Posts : 68,543
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #7

    Andrew129260 said:
    Hey Shawn,

    Why would someone want to do this?

    I guess I am wondering why this function exists.

    Thanks!

    Hello Andrew,

    It could be handy if someone wanted to do BSOD testing and needed to simulate a BSOD on demand.
      My Computers


  8. Posts : 197
    Windows 11 Home
       #8

    Brink said:
    Hello Andrew,

    It could be handy if someone wanted to do BSOD testing and needed to simulate a BSOD on demand.
    Ya I guess if anything it could be used to make sure crash dumps are actually being created. Thanks.
      My Computer


  9. Posts : 1
    Windows
       #9

    THNU85DC3sd said:
    Yes, I rebooted every time.

    So I get it working.
    First the index of the table starts at 0, so I must have used 0x63. But 2 shift keys + insert did not work. I don't know why.

    So I used ctrl+Alt+U (Dump1Keys=0x60 and Dump2Key=0x17) and it worked that way.

    Hint: You have to press twice the key. Like ctrl-alt then u-u rapidly.
    Can you post the steps to how you got it working without the scroll lock key? I can't seem to find that anywhere else online and couldn't quite figure it out.
      My Computer


 

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