Stop Code APC INDEX MISMATCH Error in Windows 10 can be quite frustrating, and in most cases, Windows stop code 0x00000001 or apc_index_mismatch bsod errors are caused by incompatible windows driver or faulty hardware.
Windows 10 users reported BSOD APC MISMATCH INDEX error, keep in mind that this is most probably a driver faulty issue. Keep all your system drivers updated and trying turn off the Realtek driver as this is a common reason for the apc_index_mismatch.
Blue screen errors in Windows are annoying and tend to be very mysterious in nature. Let’s see how to fix/resolve this error. To resolve an apc_index_mismatch windows 10 error you can use 8 different methods.
Table of Content
- Introduction
- What is APC_INDEX_MISMATCH Error?
- Types of APC_index_mismatch errors in Windows 10 (1-7)
- 8 Top Methods to Fix APC INDEX MISMATCH Errors
- Solution 1 – Disable the launch of Realtek HD Audio Manager
- Solution 2 – Install the latest updates
- Solution 3 – Check your drivers
- Solution 4 – Remove the DisplayLink driver
- Solution 5 – Uninstall specific software
- Solution 6 – Change the frequency of your RAM
- Solution 7 – Disable virtualization in BIOS
- Solution 8 – Check your hardware
- Frequently Asked Questions:
What Is APC_INDEX_MISMATCH Error?
The BSOD APC_INDEX_MISMATCH error can cause a lot of problems as it forces your computer to restart every time it appears. While talking about this error, Windows users reported the following seven types of issues caused by APC_INDEX_MISMATCH Error:
Types of APC index mismatch errors
Bsod Error APC_index_mismatch Windows 7 & 10 can show seven types of errors in different hardware and devices, here is the list of errors.
- APC_index_mismatches Lenovo, Dell
- PC index mismatches blue screen, BSOD, blocking
- APC MISMATCH INDEX BSOD error Windows 10 & 7
- APC index does not match ntoskrnl.exe, fltmgr.sys, wdf01000.sys, win32k.sys, vhdmp.sys
- APC Index does not match Realtek, Nvidia
- APC index does not match Windows 10 updates
- APC Index Not Matching Overclocking
1- APC index mismatches Windows 8.1 dell, Lenovo, – This error can appear on almost any device and both Lenovo and Dell users reported this error. If you encounter this error on your PC, you can fix it using one of our solutions.
2- APC index mismatches blue screen, BSOD, blocking – APC_INDEX_MISMATCH is a blue screen error and like any other blue screen error it will crash your PC every time it appears. However, you should be able to fix the problem by updating your drivers.
3- Windows 10 users reported APC MISMATCH INDEX BSOD error – This error can appear in all versions of Windows, even if you are using Windows 7 or Windows 8, you should be able to fix the problem using one of our solutions.
4- APC index does not match ntoskrnl.exe, fltmgr.sys, wdf01000.sys, win32k.sys, vhdmp.sys – This error message sometimes gives you the name of the file responsible for this error. Once you know the name of a file, you should do some research and find the application or driver associated with that file.
5- APC Index does not match Realtek, Nvidia – Several users reported that Realtek and Nvidia devices can sometimes cause this error. If so, be sure to update your drivers and check if that solves the problem.
6- APC index does not match Windows 10 updates – Sometimes this issue can occur after installing a specific update. To fix this problem, you need to find and remove this update from your PC. After that, the problem should be resolved.
7- APC Index Not Matching Overclocking – Many users reported this issue after overclocking their hardware. If you’ve overclocked your hardware, be sure to remove your overclocking settings and check if that solves the problem.
8 Top Methods to Fix APC INDEX MISMATCH Error
You can fix apc index mismatch error in windows 10 using the eight solutions mentioned below.
- Disable launch of Realtek HD Audio Manager
- Install the latest updates
- Check your drivers with driver booster
- Remove DisplayLink driver
- Remove specific software
- Change the frequency of the RAM
- Disable virtualization in BIOS
- Check your hardware
Solution 1- Disable the launch of Realtek HD Audio Manager
Sometimes the APC INDEX MISMATCH error can be caused by a specific application or driver installed on your computer. Several users reported that they cannot access Windows 10 at all because they will get a blue screen right after they log in.
Since there is no access to Windows 10 on a regular basis, in order to disable the launch of a particular application, you will need to go to Safe Mode. To access Safe Mode, do the following:
- 1.1– While your computer is starting up, restart it. You will have to restart it several times before the automatic repair starts.
- 1.2– Windows should automatically start the repair process. Choose Troubleshoot> Advanced Options> Startup Options. Click on the Restart button.
- 1.3– Once your computer restarts again, you will see a list of options. Press F5 or 5 to select Safe Mode with Network Functions.
After entering Safe Mode, you can stop the problematic application from launching by following these steps:
- 1.4– Start Task Manager, you can start by pressing Ctrl+Shift+Esc on your keyboard
- 1.5– After starting Task Manager, go to the Commissioning tab.
- 1.6– You will see a list of startup applications. If you see Realtek HD Audio Manager in the list, right-click and select Disable. If this app is not listed, disable all apps so they don’t start in Windows 10).
- 1.7- Close Task Manager and restart your computer.
Solution 2 – Install the latest updates
According to users, you can sometimes fix the APC INDEX MISMATCH error simply by installing the latest updates. This error can appear if your current version of Windows is not compatible with your specific hardware or software.
In most cases, you can fix this problem simply by installing the latest Windows Updates. To make this process easier, Windows 10 will download updates in the background automatically.
However, sometimes major updates can be missed due to certain bugs. However, you can always check for updates manually by following these steps:
2.1- Press Windows Key+I to open the Configuration app, Now go to the Update & Security section.
2.2- Now click the Check for Updates button.
Windows will now search for available updates. If updates are available, they will automatically download in the background. As soon as you download the updates, they will be installed as soon as you restart your computer.
Several users reported that they fixed this problem simply by installing the latest updates, so be sure to try it.
Solution 3 – Check your drivers
The APC_INDEX_MISMATCH error can sometimes appear after installing a new device on your computer. Sometimes the driver is not fully compatible with your computer and this can cause this error to appear.
To resolve this issue, make sure the installed device is using the latest drivers to avoid compatibility issues. To update device drivers, follow these steps:
- 3.1– Optional: If you don’t have Windows 10 access, enter Safe Mode and go to Step 2.
- 3.2– Start Device Manager, you can do this by pressing Windows Key+X and choosing Device Manager from the list.
3.3- After starting Device Manager, find the device you just installed. If you see an Unknown Device or any device with a yellow triangle, you need to update your drivers. You can do this directly from Device Manager by right-clicking on the device and choosing Update Driver. Also , you can also download the latest drivers online. 
If you want to keep your Windows 10 PC error-free, we highly recommend updating all of your drivers. Updating drivers manually can be a long process, but you can use this Software Driver Update to update all of your drivers with one click.
Solution 4 – Remove the DisplayLink driver
Several users reported that this issue was caused by DisplayLink drivers. DisplayLink is useful when you have an additional monitor, but unfortunately having problems with the DisplayLink driver and Windows 10)
To fix this problem, you need to uninstall the DisplayLink software from your PC. To do this, follow these steps:
- 4.1– open Control Panel and go to Programs and Features.
- 4.2– Place DisplayLink Core Software on the list and uninstall it.
- 4.3– After uninstalling, restart your computer.
To completely uninstall the DisplayLink driver, the DisplayLink Installation Cleaner must be downloaded and run. After using this software, the Display Link driver must be completely uninstalled and the APC_INDEX_MISMATCH error must be fixed.
Solution 5 – Uninstall specific software
Software like LogMeIn can cause the APC_INDEX_MISMATCH error, so it’s advised to update or uninstall it from your computer. In addition to LogMeIn, some antivirus programs, especially Norton and Avast, can cause this problem.
If you are using any of these antivirus programs, we recommend uninstalling them using Norton Removal Tool or Avast Cleaner .
If you are not using any of these tools, you should still try to uninstall your antivirus software and check if that solves the problem. If you are planning to switch to a different antivirus software, we already offer the best antivirus software for Windows 10, so you should take a look at them.
If the issue is related to your antivirus, you may want to consider switching to a different antivirus software. There are many great antivirus tools out there, but the very best are Bitdefender , BullGuard and Panda Antivirus so feel free to try any of them.
All of these tools provide excellent protection and are fully compatible with Windows 10, so feel free to try any of them.
Solution 6 – Change the frequency of your RAM
APC index does not match overclocking, This is an advanced solution that can damage your computer. Changing the RAM frequency can lead to system instability if not done correctly, so keep in mind that this is done at your own risk.
If your motherboard cannot handle the frequency of your RAM, it is advised to remove all existing overclocking settings. Alternatively, you can speed up your RAM to match the frequency of your motherboard.
To do this, you will need a suitable overclocking tool, and we have already compiled a list of the best overclocking tools. Windows 10, so be sure to check it out.
Solution 7 – Disable virtualization in BIOS
According to users, this issue may occur due to the virtualization feature. Several users reported APC_INDEX_MISMATCH error when using Trend Micro tool on their PC.
The virtualization feature appears to be interfering with Trend Micro and causing this issue. To solve the problem, it is recommended to do the following:
Enter the BIOS . To do this on your computer, you must press out or F2 during boot.
After entering BIOS, you need to find and disable the virtualization feature. To find out how to find this feature, you can refer to your motherboard manual for detailed instructions.
After disabling this feature, check if the problem is resolved. If you don’t have virtualization feature in BIOS, you can skip this solution entirely.
Solution 8 – Check your hardware
As mentioned above, BSOD errors can appear due to faulty hardware, and APC INDEX MISMATCH is no exception. According to some users, the problem was caused by a faulty touchpad on the laptop and after replacing the touchpad, the APC INDEX MISMATCH error was resolved.
If your device is still under warranty, you may want to consider shipping it to an authorized repair shop for hardware replacement.
APC_INDEX_MISMATCH can give you a lot of hassle, but luckily this blue screen of death can be easily resolved with one of our solutions.
Learn More About APC INDEX MISMATCH BSOD
Frequently Asked Questions:
This is an error caused by a driver that does not correctly execute APC (Asynchronous Procedure Call). If you’d like to fix this, read our APC Index Mismatch Guide.
This is an error caused by a driver that does not correctly execute APC (Asynchronous Procedure Call). If you’d like to fix this, read our APC Index Mismatch Guide.
A common and similar BSoD is IRQL, NOT LESS OR EQUAL. To fix this, you have to do a clean boot and see if the error reappears. This will let you know if the problem is a service or a program that normally runs. If not, try disabling the BIOS cache.
The error means that a critical error has been detected by one of the main Windows processes and cannot continue to run. Therefore, this type of error can be considered bad as it interrupts your operations and can sometimes lead to data loss.