How to fix APC_INDEX_MISMATCH BSOD on Windows 10?

Question

Issue: How to Fix APC_INDEX_MISMATCH BSOD on Windows 10?

Hello. My Windows 10 pro laptop keeps crashing with blue screen error. Sometimes the particular APC INDEX MISMATCH code appears and the window says that igdkmd64.sys failed. The situation is hopeless because I need to use this device. What can I do to fix this problem?

Answer provided

The particular APC_INDEX_MISMATCH BSOD is mainly caused by incompatible drivers or even bad hardware issues. It sometimes triggers the code 0x00000001 in addition to the incompatibility indication. It may be related to Realtek and Nvidia drivers in particular. Identifying the faulty driver is the first step in resolving it. In addition, some programs can interfere with Windows processes. Disabling them can therefore also solve the problem.

APC_INDEX_MISMATCH is a Windows Blue Screen of Death, which usually indicates the presence of an incompatible device driver in the system. It can happen in various circumstances, for example, part of victims of APC_INDEX_MISMATCH error could not access desktop because BSOD prompts right after logging in to Windows, while other party meets while plugging in HDMI cable or running certain applications.

Currently, many Windows 10 users reported that APC INDEX MISMATCH BSOD window shows corrupt Igdkmd64.sys file. It is part of the essential Windows system files, which are included with Windows 10. The error may give the file another name (ntoskrnl.exe, fltmgr.sys, wdf01000.sys, win32k.sys) which does not match the ‘error triggered.

However, in order to fix the APC INDEX MISMATCH error, do not in any way attempt to modify the Igdkmd64.sys file or anything else that is causing the problem, as this may further damage the system by violating its integrity. You can find the application which is related to this file or the driver which is corrupt, damaged or missing.

Windows experts believe that the most common triggers of this BSOD are graphics card or DisplayLink drivers. So the first fix that can help to fix the APC_INDEX_MISMATCH BSOD is to update or reinstall incompatible, outdated, or corrupt device drivers. If it didn’t work, then you need to check that the system is free of unwanted software or that there are no issues with the hardware.

How to fix APC_INDEX_MISMATCH BSOD on Windows 10

You should check that the system is free of incompatible software to determine if APC_INDEX_MISMATCH BSOD is the only problem with your device. Any problem with missing or corrupted driver or device file can be resolved automatically. There are system tools and procedures that can resolve these issues.

However, you will need to dig further, find and fix the problem to properly fix the APC_INDEX_MISMATCH BSOD once and for all. The programs that trigger the BSOD can be third-party antivirus programs or applications (LogMeIn). To do this, you can run a scan with ReimageMac Washing Machine X9. It can indicate PUPs, unwanted applications, or even files affected by this type of item. PC optimizers like this can also repair Windows files if needed.

Install the latest Windows updates

• Go to the windows settings.
• Search Update and security.
• Select Windows Update and click on Check for updates.
• Install the latest version, in order to resolve some issues.

Update driver automatically to fix APC_INDEX_MISMATCH BSOD

You can automatically update various drivers using applications designed to find, update, and install missing parts that are necessary for Windows to function properly. You can try DriverFix and check the machine, in order to quickly improve performance.

Incorrect driver installation or wrong driver version can lead to various error messages including BSOD errors like APC_INDEX_MISMATCH and other issues. This app recommends new drivers, updates outdated drivers, and addresses compatibility issues. You can rely on the program and be sure that the drivers will be updated and that the ones installed will be compatible with the operating system and applications.

Update device drivers through Device Manager

Incompatible or outdated device drivers most often trigger the APC_INDEX_MISMATCH error. Therefore, if you are able to boot to Windows, perform the following steps:

• Right click on the Windows key and select Device Manager.
• Now look for device drivers marked with a yellow exclamation mark. If none of them are marked, try updating the graphics card driver first.
• Right click on the driver and select Update the driver.
• If that didn’t work, you can try updating other device drivers manually or downloading a driver update utility.

Check for file problems

• Push the button Start and seek Command Prompt.
• Run as administrator.
• Type sfc /scannow.
• Press on Entrance.
• Allow the system to check if any files are affected or damaged.

Remove DisplayLink driver to repair APC_INDEX_MISMATCH BSOD

People who use an additional monitor may need a DisplayLink driver. But beware, Windows experts warn that this particular driver may be the cause of the APC_INDEX_MISMATCH blue screen. So if updating the drivers didn’t work, check for the presence of the DisplayLink driver and remove it.

• Simultaneously press the keys Windows + I to open the Applications.
• Click on the link Programs and Features in the left pane.
• Find the software DisplayLink Core and click on it.
• Select Uninstall.
• Then find the DisplayLink Installation Cleaner and download it.
• Run the tool to complete the removal and restart the system.

Disable Realtek HD Audio Manager

If you cannot access Windows due to APC_INDEX_MISMATCH BSOD, try to access Safe Mode and follow these steps:

• Restart your PC several times before Automatic Repair starts.
• Once Windows has initiated the repair process, select Problem resolution.
• Then click on Advanced options and select Startup parameters.
• Select To restart.
• When the system restarts, press F5 or 5 to select the Safe Mode with Networking.
• After the system boots in Safe Mode, press Ctrl + Alt + Suppr to open Task Manager.
• Open the tab Start-up and locate the Realtek HD Audio Manager.
• Right click on it and select Deactivate.
• Then close Task Manager and try to restart your PC.

Fix your mistakes automatically

The Bitcoinminershashrate.com team tries to do its best to help users find the best solutions to eliminate their errors. If you don’t want to have difficulty with manual repair techniques, please use automatic software. All recommended products have been tested and approved by our professionals. The tools you can use to fix the error are listed below: