You may have been encountering various stop errors on Windows 10. This article aims to give you some solutions to fix APC Index Mismatch blue screen error.
Stop error, and blue screen of death error are the same thing. By the way, When you encounter this stop error, you may see the following message on the blue screen.
Your PC ran into a problem and needs to restart.
STOP Code: APC_INDEX_MISMATCH
Sometimes, You may see some error codes like 0xC6869B62, 0x97503177, 0x0000001, 0x02A7DA8A, etc. Whatever, You can get rid of this error very easily.
Usually, this blue screen of death appears in PC for any internal issues that caused by driver or hardware incompatibility or any service interruptions.
How to Fix APC Index Mismatch Stop Error
There are several ways to repair this stop code. However, In some cases, you may not access windows as this error appears before you login into windows. In that case, You will have to follow these ways in safe mode or safe mode with networking.
1. Update Drivers
To fix APC index mismatch, you will have to update the drivers on your PC. In most cases, Incompatible Audio and Display drivers cause this stop error. So, You must update these drivers. Read: How to update drivers.
2. Clean Boot
Any of the third-party services and programs that start automatically right after with windows startup may cause STOP Code: APC_INDEX_MISMATCH. So, I suggest you perform the clean boot. It will disable all third-party services and give you a clean environment. If you see that your PC is doing fine in clean boot, maybe one of the startup services is the culprit. In most cases, The Realtek HD Audio manager or any other similar audio manager program may cause this problem. Touchpad controller, antivirus, firewall and display drive controllers also can create this issue. So, You also can disable them to see if it helps.
3. Run Blue Screen Troubleshooter
Windows has a built-in stop error troubleshooter. Why aren’t you trying it? To run it, follow these things.
At first, Go to Settings > Update & Security > Troubleshooter. You can press on Win + I on the keyboard to open settings. By the way, After going there, find and click on Blue Screen and then click on Run the troubleshooter.
Now, Go ahead according to the on-screen instructions. Hopefully, It will fix APC index mismatch BSOD.
4. Uninstall DisplayLink Driver
People who are using dual monitor may encounter this blue screen of death. In that case, DisplayLink Driver is responsible for it. So, You can temporarily uninstall this driver and see if it remove the APC index mismatch error from your PC or not.
5. Look at the RAM
Sometimes, RAM problem cause the blue screen of death. So, You can run Windows Memory Diagnostic tool to identify and fix memory problems. By the way, In some cases, You may increase DRAM frequency from motherboard BIOS settings. That also may cause this problem. So, To fix Stop Code: APC Index Mismatch, you can set the default frequency or lower the frequency of RAM. You can do these things from motherboard BIOS settings. Hopefully, It will work.
6. Analyze Dump File
Small minidump files are handy to identify the actual driver or services that is causing the blue screen of death. It helps to take further steps. So, You should follow this method. Read this article to know more about it in details.
I hope these tips will be helpful to fix APC index mismatch error. However, You also can take further steps by asking an expert.
Hope something helps!