← Back to DatabaseHow to Fix STOP CODE 0xC000021A
Topic: Windows 10 Blue Screen Errors | Status: Updated
What is this error?
The STOP CODE 0xC000021A error in Windows 10 is a critical system-level error that occurs when the session manager encounters an unexpected condition, leading to system instability. This error typically results in a Blue Screen of Death (BSOD), causing the operating system to halt and display an error message to prevent further damage.
How to Fix It
- Boot into Safe Mode: Restart your computer and repeatedly press the F8 key before Windows loads. From the Advanced Boot Options menu, select "Safe Mode." If you can access Safe Mode successfully, it indicates that a third-party application or driver might be causing the issue.
- Uninstall Recent Software: In Safe Mode, navigate to Control Panel > Programs > Uninstall a Program, and remove any recently installed applications that may be contributing to the error.
- Update Drivers: Still in Safe Mode, go to Device Manager and check for any devices with a warning symbol. Right-click and select "Update Driver" to ensure all your hardware drivers are up to date.
- Run System File Checker: Open Command Prompt as an administrator. Type
sfc /scannow and press Enter. This command will scan for and repair corrupted system files that may be causing the error.
- Perform a System Restore: If the error persists, use the System Restore feature. Go to Control Panel > Recovery > Open System Restore, and restore your system to a point before the issue began occurring.
- Reinstall Windows: As a last resort, consider backing up your data and performing a clean installation of Windows 10. This ensures that any underlying issues with the operating system are resolved.
Disclaimer: This is an educational guide. We are not responsible for data loss. Always backup your system.
