Summary: Have you recently encountered a blue screen on your Windows 10 PC with an error message – APC Index Mismatch? In this blog, learn what this error means, why it occurs, and how to fix it?
Some users have reported that they have recently experienced a blue screen error on their Windows PC screen with a stop code- APC Index Mismatch. This error may occur at any moment and cause your system to crash every time you try fixing it by rebooting. While it may be understandably frustrating, knowing what this error means and its causes may help you combat the problem and save your precious data.
|Table of Content: |
1. What is APC Index Mismatch Error?
2. What Causes APC index Mismatch Windows 10?
1. How to Fix APC Index Mismatch?
Error message – APC_Index_Mismatch shows up with a blue screen on your Windows 10 system. This error may occur right after your system startup or while you’re working on something important. This error may also occur while trying to connect a Webcam during a Skype call. The stop code may lead your system from malfunctioning to a complete crash. Or even, as some users reported, it may get stuck on the booting loop. So, what causes it? Let’s find out.
Usually, Stop Code APC Index Mismatch blue screen error occurs due to incompatible device drivers, problematic Windows updates, corrupt system files, virtualization features in BIOS, or faulty hardware. However, sometimes any third-party software and applications installed on your system may also contribute to this error.
Irrespective of the reasons, you may fix the APC Index Mismatch BSOD error with some efficient troubleshooting methods given in this blog. However, we’d suggest you first boot into safe mode to avoid interruptions while fixing the error.
Boot your Windows 10 in Safe Mode:
Now that you’re in safe mode, you may perform the following troubleshooting methods to get rid of Windows stop code APC Index Mismatch.
|Caution: While performing some of the given fixes, you may lose your essential system data. It’s advised to take a backup of your data and then proceed further.|
Here, we’ve mentioned the best possible methods to help you get rid of the BSOD error. All fixes can be performed easily by following the steps mentioned against them correctly.
Changing the RAM frequency may help you fix this error. However, it is a bit advanced solution, which requires technical skills and knowledge. If not done correctly, this solution may cause system instability, even severely damage it. Hence, we’d suggest you take an expert’s help. Else, if your motherboard can’t handle the current RAM frequency, remove any overclock settings. Alternatively, you can underclock your RAM to check if it matches your system frequency. Reboot your system and check if the APC_Index_Mismatch error is fixed.
Some users have reported that the BSOD APC Index Mismatch error may be attributed to Realtek HD Audio Manager. You can try removing or disabling Realtek HD Audio Manager from the Startup items.
Finally, reboot your system normally and check if the error persists.
Once your app/software is uninstalled, reboot your PC.
If you can’t find the Virtualization feature in BIOS, skip this method. Don’t change anything forcefully; else, you may end up causing more damage to your Windows 10 PC and losing all data.
Don’t worry! You can use robust data recovery software, such as Stellar Data Recovery Professional. It is a DIY software that can efficiently restore your lost or deleted data from formatted, corrupted, crashed, or unbootable Windows systems and storage media devices, such as HDDs, SSDs, USB drives, etc.
If you choose to remove everything while resetting Windows 10, which is usually recommended to make this process work, you will end up losing your data. However, you can use robust data recovery software to retrieve your lost data.
As far as APC Index Mismatch stop code is concerned, this blue screen error may be caused due to multiple reasons, such as incompatible RAM frequency, device drivers, damaged system files, hardware changes, etc. You may try out the troubleshooting methods shared in this blog. Hopefully, the fixes can help you solve such blue screen error on Windows 10.
Let us know about your experience!
Mansi Verma is a Technology Writer at Stellar®. She is a Tech enthusiast, holding over 7 years of experience in Data Recovery, IoT, Artificial Intelligence, and the Robotics technology domain. She loves researching and providing DIY solutions and tips & tricks to solve Windows technical issues. In her spare time, she likes reading novels, and poetry. She also enjoys traveling and trekking.