Fix: ‘Apc Index Mismatch’ BSOD Error on Windows 11/10

There are many things that can cause the BSoD (blue screen of death), which is one of the worst mistakes in Windows. APC Index Mismatch is one of these BSoD errors that is showing up more often these days. When it does, it shows up how to Fix ‘Apc Index Mismatch’ BSOD Error on Windows 11/10.

It seems like this blue screen error makes your computer crash out of the blue, and you can’t get to anything on your device. It’s possible that you will lose some of your work, and the mistake may be caused by a bigger problem in your system.

What are APCs?

APCs are small threads that the Windows kernel uses to stop another thread from running and do a certain job before giving control back to the first thread. They are in charge of many things, such as system alerts, communicating with device drivers, and asynchronous I/O activities.

Why ‘Apc Index Mismatch’ BSOD Error on Windows 11/10

• Faulty Device Drivers: This problem can be caused by device drivers that are out of date or don’t work with your computer. It is very important to keep your drivers, especially your graphics and system drivers, up to date.
• System Files That Are Broken: If important system file are broken, it can cause many problems, such as APC_INDEX_MISMATCH. The System File Checker (SFC) tool can help you find and fix system files that are damaged.
• Software that Doesn’t Work with Your Version of Windows: Some software programmes or third-party tools might not work with your version of Windows, which can cause problems. Make sure that all of your software works with the version of Windows you’re using.
• Infections with malware or viruses: Malicious software can damage system files and lead to errors like APC_INDEX_MISMATCH. Use a reliable antivirus software to check your system for malware and viruses on a regular basis.

• Overclocking: If you push your CPU or GPU past their safe operating range, the system could become unstable and make mistakes. If you overclocked your gear, you might want to set it back to its original settings.
• Windows Updates: Make sure that all of the updates for your Windows system are installed. Microsoft usually sends out updates that fix bugs and add security.

Fix: ‘Apc Index Mismatch’ BSOD Error on Windows 11/10

Check for Disk Errors:

1. Open Command Prompt as an administrator.
2. Type chkdsk /f and press Enter.
3. Reboot your computer to allow CHKDSK to scan and fix any disk errors.

Change RAM Frequency

Users sometimes change the speeds of RAM and processors to get better performance when working or playing games. This can cause the system to crash or freeze in different ways. So, you shouldn’t change the system’s frequencies until you know everything there is to know about the niche.

Perform Windows Reset

1. Pick up the phone and press Windows + I to get to Settings. The window shown below will pop up. “Update & Security” is the link to click.
2. There will be a chance. When you see “Reset this PC,” click on “Get started.” That’s it!
3. A conversation box will appear, as shown in the picture below. Pick “Keep my files.”
4. Click “Local reinstall” after that.
5. Please click on “Next” as shown in the picture below.
6. Just click “Reset” to start over with Windows 10.

Disable Realtek HD Audio Manager

1. Press the Ctrl, Alt, and Del keys on your keyboard at the same time to open the Task Manager.
2. On the opening tab, you can see a list of programmes that run at opening.
3. Click on the list and look for Realtek HD Audio Manager.
4. Right-click on the name of the app and choose “Disable” from the menu that comes up.

Run Windows Memory Diagnostic

1. To open the Run box, press Win + R.
2. Press Enter after typing mdsched.exe.
3. You can choose to restart your machine and look for issues with the memory.

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