What is ‘APC Index Mismatch – Blue Screen of Death (BSOD) error’ in Windows 10?
If you are facing ‘APC Index Mismatch Windows 10’ – BSOD error in your device in the middle of your work in computer or when you starts your Windows, then you are in right place for the solution. Here, you will be guided with easy steps/methods to resolve this BSOD error. Let’s starts the discussion.
‘APC Index Mismatch – Blue Screen of Death (BSoD) error’: It is common Windows problem considered as Blue Screen of Death error. This error is appeared in Windows 10 in the middle of your work on computer or when System boot/reboot. This BSOD error prevents you from accessing Windows desktop and cause PC’s restart loop.
This BSOD error is appeared with message saying ‘Your PC ran into problem and needs to restart. We’re just collecting some error info, and then we’ll restart for you’ along with some stop code. Several users reported that they faced APC Index Mismatch BSOD error on their Windows 10 device when they are trying to use their webcam with Skype App. Some users reported the BSOD error is appeared when they play video games or performing another resource demanding activity.
If you are not aware, APC (Asynchronous Procedure Call) is function designed to run outside and separately from the main program when certain circumstances are met. APC Index Mismatch BSOD error indicates there is an inconsistency in the number of processes that entered an area of operations where the programs are running, and the number of processes that left.
The possible reason behind this BSOD error is problematic device drivers. Sometimes, this error is attributed to Realtek and NVIDIA drivers. You should make sure that is no issue with system’s drivers and all device drivers are up-to-date especially your Realtek or NVIDIA drivers if you have these brands’ products integrated. Updating device driver that is missing or corrupted/outdated can fix this BSOD error.
Sometimes, APC Index Mismatch BSOD error can also be occurred due to malfunctioning hardware components. Instability with hardware components issue occurred usually due to ‘Overclocking’. In such case, you can disable ‘Overclocking’ and change the hardware components like CPU, GPU or RAM frequencies to default frequencies, in order to fix the issue. Let’s go for the solution.
How to fix APC Index Mismatch Windows 10?
Method 1: Fix APC Index Mismatch BSOD error with ‘PC Repair Tool’
‘PC Repair Tool’ is easy & quick way to find and fix BSOD errors, EXE errors, DLL errors, problems with programs, malware or viruses issues, system files or registry issues and other types of issues with just few clicks. You can get this tool through button/link below.
Method 2: Update Windows 10 drivers
As mentioned, this BSOD error is occurred usually due to issue with system’s drivers. You can update Windows drivers in order to fix the issue.
Step 1: Press ‘Windows + X’ keys on keyboard and select ‘Device Manager’
Step 2: In the opened ‘Device Manager’, expand each device category one-by-one and look of device showing ‘Yellow Exclamation Mark’ on it. Driver with ‘Yellow Mark’ requires update
Step 3: Right-click device with ‘Yellow Mark’ on it, and select ‘Update Driver’. Follow on-screen instructions to finish update process.
Step 4: Once done, restart your computer and check if the error is resolved.
Uninstall and reinstall Windows 10 drivers:
You can try to uninstall the driver with ‘Yellow mark’, and then reinstall the latest version of the driver for the device in your computer.
Step 1: Open ‘Device Manager’ and right-click on the device showing ‘Yellow mark’
Step 2: Select ‘Uninstall Device’ and follow on-screen to uninstall and then restart your computer
Step 3: Now, download the latest version of driver you uninstalled from manufacturer official site, and install it into computer. Once done, check if the error is resolved.
Download or reinstall Windows 10 drivers update [Automatically]
You can also try to update all Windows drivers with ‘Automatic Driver Update Tool’. This software will automatically find the latest updates for all Windows drivers, and then install them into computer. You can get this tool through button/link below.
Method 3: Reinstall latest version of Realtek High Definition driver
As mentioned, this BSOD error can be occurred due to outdated or corrupted Realtek High Definition Audio driver. You can reinstall the latest version of the driver in order to fix the issue.
Step 1: Open your browser and download the latest version of Realtek High Definition Audio driver from ‘Realtek Driver Download (Official) site’
Step 2: Once downloaded, double-click on ‘Driver setup file’ and follow on-screen instructions to finish installation.
Step 3: Once done, restart your computer to see the changes and check if the error is resolved.
Method 4: Try Windows Base Audio Driver
This error is occurred due your audio driver. You can try to fix the BSOD error by uninstalling your audio driver like Realtek Audio driver, and reinstall Windows Base Audio driver.
Step 1: Open ‘Device Manager’ and expand ‘Sound, video and game controllers’ category
Step 2: Right-click on your Realtek High Definition Audio, and select ‘Uninstall Device’.
Step 3: After that, open ‘Control Panel’ and go to ‘Uninstall a Program > Programs & Features’
Step 4: Find and select ‘Realtek High Definition Audio Driver’, and select ‘Uninstall’. Follow on-screen instructions to finish uninstall
Step 5: Once done, restart your computer in order to reinstall Windows Base Audio Driver in computer. Now, check if the error is resolved.
Method 5: Uninstall Display Link Driver
If you have installed Display Link software & driver, then you need to uninstall it in order to fix BSOD error. DisplayLink can be great software to use if you want to use additional monitor for increased productivity. However, this tool causes APC Index Mismatch BSOD error in Windows 10 according to some users report. You can uninstall this driver in order to fix the issue.
Step 1: Open ‘Control Panel’ and go to ‘Uninstall a Program > Programs & Features’
Step 2: Find and select ‘DisplayLink Core Software’, and select ‘Uninstall’. Follow on-screen instructions to finish uninstall process.
Step 3: Now, download ‘DisplayLink Installation Cleaner’ from its official site and then install it into computer.
Step 4: Run the downloaded tool and clean remaining DisplayLink files in computer, and then restart your computer, and check if the error is resolved.
Method 6: Disable Overclocking CPU, GPU or RAM
Problems with hardware components like CPU, GPU or RAM is occurred due to Overclocking and result in APC Index Mismatch BSOD error. Overclocking hardware components may help you to boost up performances but it may also trigger error like APC Index Mismatch BSOD error. You can disable Overclocking and revert to default frequencies of your hardware components in order to fix the issue.
To do so, you need to enter into CMOS and BIOS settings of computer and reverse all voltage settings of motherboard back to normal. You also need to disable overclocking feature and set it to default in BIOS Settings. Once done, save the changes and exit BIOS settings, and then restart your computer. After restart, please check if the error is resolved.
Method 7: Update Windows 10 OS
Updating Windows 10 to latest build can fix any issues in Windows computer and improve performances as well.
Step 1: In Windows 10, open ‘Settings’ App and go to ‘Update & Security > Windows Update’
Step 2: Click on ‘Check for updates’ button. This will show you the list of available updates and then click on ‘Download and install’ to install the update.
Step 3: Once done, restart your computer to see the changes and check if the issue is resolved.
Method 8: Reinstall or reset Windows 10
You can perform Windows 10 reset in order to fix the issue if the error is still persist.
Step 1: Open ‘Settings’ App and go to ‘Update & Security > Recovery > Reset This PC’
Step 2: Click on ‘Get Started’ button under ‘Reset This PC’ section
Step 3: Select ‘Keep my files’ and follow on-screen instructions to finish reset.
Step 4: Once done, restart your computer and check if the issue is resolved.
Conclusion
I am sure this post helped you on How to fix APC Index Mismatch Windows 10 with several easy steps/methods. You can read & follow our instructions to resolve the issue. That’s all. For any suggestions or queries, please write on comment box below.
