Fixes

8 steps to fix apc_index_mismatch BSOD like a pro


5. Uninstall the DisplayLink driver

  1. Open Control Panel and navigate to Programs and Features.
    Apc_index_mismatch blue screen
  2. Locate DisplayLink Core software on the list and uninstall it.
  3. After you’ve uninstalled it, restart your computer.

In order to completely remove the DisplayLink driver, you need to download and run DisplayLink Installation Cleaner.

After using this software, the DisplayLink driver should be completely removed and the apc_index_mismatcherror should be fixed.

DisplayLink is useful when you have an additional monitor, but unfortunately, it seems that there are certain issues with the DisplayLink driver and Windows 10.


6. Change your RAM frequency

Apc index mismatch overclocking

This is an advanced solution, and by performing it you might cause damage to your PC.

Changing the RAM frequency might lead to system instability if not done properly, so bear in mind that you’re doing this at your own risk.

If your motherboard cannot handle the frequency of your RAM, it’s advised that you remove any overclock settings that you have.

Alternatively, you can underclock your RAM so it can match your motherboard frequency.


Test your system to detect and prevent overclocking settings with these amazing tools.


7. Disable Virtualization in BIOS

Disable Virtualization in BIOS
  1. Enter BIOS. (To do that on your PC, you need to press Del or F2 during the boot sequence.)
  2. Once you enter BIOS, you need to find and disable the Virtualization feature. (To see how to locate this feature, you might want to check your motherboard manual for detailed instructions.)

After disabling this feature, check if the problem is resolved. If you don’t have a Virtualization feature available in BIOS, you can skip this solution entirely.


8. Check your hardware

As previously mentioned, BSOD errors can appear due to faulty hardware.

According to few users, the problem was caused by a faulty touchpad on their laptop, and after replacing the touchpad the apc_index_mismatch error was resolved.

If your device is still under warranty, you might want to consider taking it to the official repair shop for a hardware replacement.


9. Remove interfering software

how to fix apc index mismatch

Software such as LogMeIn can cause the error, therefore it’s advised that you update it or remove it from your PC.

In addition to LogMeIn, certain antivirus software, most notably Norton or Avast can cause this issue to occur.

If you’re using any of these antivirus programs, we urge you to remove them by using a dedicated uninstaller such as IObit Uninstaller Pro, to make sure all related files are deleted.

Also, you might want to consider switching to different antivirus software. There are many great antivirus tools that offer great protection and they are fully compatible with Windows 10.

Apc_index_mismacth can cause you a lot of trouble, but fortunately, this Blue Screen of Death error can be easily resolved by using one of our solutions.

If one of our suggestions worked in your case, please let us know in the comments.

FAQ: Learn more about APC INDEX MISMATCH BSOD

  • What is an APC index mismatch?

It is an error caused by a driver incorrectly performing an APC (Asynchronous Procedure Call). If you want to fix this read our APC index mismatch fix guide.

  • How do I fix Irql not less or equal?

If you get IRQL NOT LESS OR EQUAL at startup, checking for corrupted files as explained in our guide should help.

  • Is Blue screen of death bad?

This type of error can be considered bad since it interrupts your operations and sometimes it can lead to data loss. Learn more about what causes a Blue Screen of Death.

Editor’s Note: This article was originally published in June 2016 and was revamped and updated in February 2021 for freshness, accuracy, and comprehensiveness.

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