How to fix WIN32K_CRITICAL_FAILURE BSoD Error in Windows 11/10

What is WIN32K_CRITICAL_FAILURE Error

WIN32K_CRITICAL_FAILURE error is a critical system issue that results in a Blue Screen of Death (BSoD) on Windows 11 and Windows 10 systems. This error typically indicates a problem within the Win32k.sys driver, which is responsible for managing graphical user interface (GUI) functions and input devices like the keyboard and mouse. When this driver encounters a fatal error, the operating system halts to prevent further damage. Common causes include corrupted system files, outdated or incompatible device drivers, hardware conflicts, or malware infections. Understanding the underlying reasons is essential for effectively troubleshooting and resolving this error. Persistent occurrences can lead to data loss or system instability, making prompt attention crucial for maintaining system integrity and performance.

Solutions to Fix WIN32K_CRITICAL_FAILURE Error

1. Update Windows and Drivers

Ensuring your system and drivers are up-to-date can resolve compatibility issues that cause the error.

1. Click on Start, then go to Settings.
2. Navigate to Update & Security, then click on Windows Update.
3. Select Check for updates and install any available updates.
4. To update drivers, right-click on Start and select Device Manager.
5. Expand each device category, right-click on the device, and choose Update driver.

2. Run System File Checker (SFC) and DISM Scans

Use built-in tools to repair corrupted system files.

1. Open Command Prompt as an administrator.
2. Run the command: sfc /scannow
3. After completion, execute:
   
   DISM /Online /Cleanup-Image /RestoreHealth
4. Restart your computer.

3. Check for Malware

Perform a full system scan to eliminate malware threats.

1. Open Windows Security from the Start menu.
2. Navigate to Virus & threat protection.
3. Click on Scan options and select Full scan, then click Scan now.

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4. Perform a Clean Boot

A clean boot can help identify if third-party applications are causing the error.

1. Press Windows + R, type msconfig, and press Enter.
2. Under the Services tab, check Hide all Microsoft services and click Disable all.
3. Go to the Startup tab and click Open Task Manager.
4. Disable all startup items.
5. Restart your computer and check if the error persists.

5. Update or Reinstall Graphics Drivers

Faulty graphics drivers can cause BSoD errors related to win32k.sys.

1. Open Device Manager.
2. Expand Display adapters, right-click your graphics driver, and select Uninstall device.
3. Reboot your system; Windows will attempt to reinstall the driver.
4. Alternatively, download the latest driver from the manufacturer’s website and install it manually.

Updating each driver manually is time- and energy-consuming. If you are willing to save it and update drivers faster, we recommend using a special utility called Driver Booster from IObit. It has broad databases of drivers for all of the devices you need to maintain your PC. You can download it using the button below.

Download Driver Booster

6. Check Hardware Components

Faulty hardware like RAM or hard drives can trigger BSoD errors.

1. Run Windows Memory Diagnostic by typing mdsched.exe in the Run dialog.
2. Choose Restart now and check for problems.
3. Inspect hard drive health using commands like chkdsk in Command Prompt.

7. Restore System to a Previous State

Use System Restore to revert your system to a point before the error occurred.

1. Search for Create a restore point and open it.
2. Click on System Restore, then Next.
3. Select a restore point and follow the prompts to begin the restoration process.

8. Reset or Reinstall Windows

If all else fails, consider resetting or reinstalling Windows.

1. Go to Settings > Update & Security > Recovery.
2. Under Reset this PC, click Get started.
3. Choose to keep your files or remove everything, then follow the on-screen instructions.

Conclusion

WIN32K_CRITICAL_FAILURE BSoD error can be daunting, but with systematic troubleshooting, it can be resolved. Always ensure your system is updated, maintain backups, and consider professional assistance if the issue persists.