The Apc_index_mismatch error is a BSOD (Blue Screen of Death) error that generally indicates that your system contains an incompatible device driver or there is a hardware issue. Whenever this particular error occurs, it forces the user to restart their system every time. Though it is one common error for every device and Windows version. The error message will sometimes name the file that triggered the said error such as ntoskrnl.exe, wdf01000.sys, fltmgr.sys, vhdmp.sys and win32k.sys.
Regardless of how problematic this error is, we have found a list of fixes for the same that will possibly help you resolve the same within no time. If you are also the one suffering from the Apc_index_mismatch ntoskrnl.exe BSOD error, then consider following the list of solutions in the article below. Have a look:
Also Read
How to fix the “APC_INDEX_MISMATCH ntoskrnl.exe BSOD error”?
FIX 1: Disable Realtek HD Audio Manager from startup:
The Realtek HD Audio Manager is one of the primary triggers that further leads to the “APC_INDEX_MISMATCH ntoskrnl.exe BSOD error”. Hence here we recommend you to disable the Realtek HD Audio Manager from startup first and check whether it helps or not. For doing so, follow the steps given below:
- Firstly, restart your computer a few times before the Automatic Repair starts.
- Now once the repair process starts (Windows will do the same automatically), click on Troubleshoot and then select Advanced options.
- Further, navigate to the Startup Settings and then click on the Restart tab.
- Now once your system restarts, press the 5 or F5 key and select Safe Mode with networking.
- Further, once you have entered the Safe Mode, press Ctrl + Shift + Esc altogether, and it will launch the Task Manager window for you.
- On the Task Manager window, navigate to the Startup section from the vertical menu and then from the list of apps below, locate and right-click over Realtek HD Audio Manager and then select the option Disable.
- Once done, close the Task Manager window and then restart your computer. The said error would have possibly got resolved by now.
FIX 2: Install the latest Windows updates:
As per a lot of suffered users, installing the latest Windows update solved the “Apc_index_mismatch ntoskrnl.exe BSOD error” easily for them. Hence, consider doing the same and follow the steps given below:
- Firstly, you need to open the Settings app by pressing Windows + I simultaneously.
- Now in the Settings window, select the Update and Security option.
- Here on the right-pane menu, click on the Check for updates tab. Your system will now check and download any available update automatically in the background.
