How to Fix Error 0xc000021a in Windows 8/10?
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Summary
When you encounter startup error 0xc000021a in Windows 8 and 10, usually you’re reminded to restart the PC. But sometimes the error 0xc000021a still appears after the PC has been restarted. Some solutions about how to fix error 0xc000021a in Windows 8 and 10 will be provided.
Causes of Error 0xc000021a
Cause 2: System files are missing or get damaged
Cause 3: BCD is a database of system configurations. If BCD is damaged or missing, it can’t be found when you try to boot Windows. Then error 0xc000021a happens.
Cause 4: Error 0xc000021a could be caused by hardware failure such as damaged graphics card, computer memory or disk. Especially when you have dual systems, Error 0xc000021a may also occur if there’s something wrong with the disk of one of the systems.
How to Fix Error 0xc000021a?
Solution One: Uninstall Malicious Software or Graphics Card
Solution Two: Use Startup Repair
Note: Please change the boot order in BIOS settings and put CD-ROM or Removable Devices as the first boot choice. Then your PC will boot from Windows installation disk.
Solution Three: Use System File Check Tool to Scan and Fix Problems
Solution Four: Rebuild BCD
Please press “Enter” after you type each command.
Solution Five: Scan and Detect Bad Sectors of Hard Disk
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