The 0xC000021A error can occur if there were corrupt system files in the computer, a failed upgrade, or an incomplete installation of a software program.
First Method: Unplugging External Devices. As we’ve mentioned, it is possible that peripheral devices are causing critical system errors on your computer.
Third Method: Running an SFC Scan.
Fifth Method: Rebuilding the Boot Configuration Data.
Sixth Method: Checking the Health of Your HDD.
How to fix error code 0xc000021a on Windows 10?
Part 2: 16 Solutions to Fix Stop Code Error 0Xc000021A Method 1: Unplug external devices.
Method 2: Repair corrupted system files.
Method 3: Without Windows, run a special driver signature verification function.
The second way is to remove the newly installed software/hardware.
Method 5: Run the dism command.
Method 6: Replace any corrupted registry hive files that come with the backups.
Method 7: BIOS reset.
Method 8: System Restore.
More servings
How to fix internal power error 0x000000a0 in Windows 10?
[MiniTool News] Method A: Update your drivers. First, you need to update the drivers that will fix the Windows 10 INTERNAL POWER ERROR BSOD as the BSOD usually starts 2:
Method Remove the newly installed software.
Method 3: Run SFC.
Method 4: Increase the hibernation file size.
Last words.
How to fix Windows 10 not booting?
Windows 10 won’t boot after UpdateRevert Installed Updates. Wait patiently for Windows 10 to start after checking your computer.
Recovery with Startup Repair. Windows 10 won’t boot, this can be fixed by running Digital Startup Repair in the data recovery environment.
Boot into safe mode.
Check for errors using the command line.
Thorough check for errors in the player.
How to fix file system error in Windows 10?
Check for Windows updates. If there is a known issue causing the hosting plan to fail, Microsoft will likely fix it as soon as possible.
Restart your computer. Sometimes this happens because a simple restart of the computer should really bring up an error that prevents you from opening files, playing online games and applications.
Uninstall the latest system updates.
How do I fix error code 0x000021a?
Fix Windows 10 Stop Coupon Code Error 0xc000021a
What is error 0x000021a?
Error 0xC000021A is a specific Blue Of Screen Death or BSoD error (related to: Blue Of Screen Death Guide) that occurs when the Windows User Mode Subsystem is compromised.
Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.