5 Proven Solutions to Troubleshoot Windows 10 Error Code 0xc000021a

As a Windows 10 user, you might have experienced the frustrating error code 0xc000021a which prevents your system from booting up properly. This error can be caused by various factors including corrupted system files, malware infections, or hardware issues. However, the good news is that there are several solutions you can try to fix this error and get your system up and running again. In this blog post, we’ll explore five proven solutions to troubleshoot Windows 10 error code 0xc000021a and get your system back on track.

If you encounter the Windows 10 error code 0xc000021a, you may not be able to boot your computer. It is a critical system error that can be caused by various reasons, such as corrupted system files, damaged drivers, or faulty hardware. Fortunately, there are some proven solutions that can help you troubleshoot and fix this error. In this article, we will discuss five effective methods that you can use to solve the Windows 10 error code 0xc000021a.

Method 1: Use System Restore

If you have created a system restore point before the error occurred, you can use it to restore your system to a previous state when it was working correctly. To use system restore, follow these steps:

1. Boot your computer using the Windows installation media.
2. Select your language preferences and click “Next.”
3. Click “Repair your computer” and choose “Troubleshoot.”
4. Select “Advanced options” and click “System Restore.”
5. Follow the on-screen instructions to select a restore point and restore your system.

Method 2: Use the Last Known Good Configuration

The Last Known Good Configuration (LKGC) option can help you boot your system with the last known working settings. To use this option, follow these steps:

1. Restart your computer and press the F8 key repeatedly during the boot process.
2. Select “Last Known Good Configuration” from the Advanced Boot Options menu.
3. Press Enter and wait for your computer to boot.

Method 3: Update or Rollback Drivers

If you have recently installed new drivers or updated existing ones, they may be causing the error. You can update or rollback drivers to troubleshoot the issue. To update or rollback drivers, follow these steps:

1. Boot your computer using the Windows installation media.
2. Select your language preferences and click “Next.”
3. Click “Repair your computer” and choose “Troubleshoot.”
4. Select “Advanced options” and click “Command Prompt.”
5. Type “C:” and press Enter.
6. Type “cd WindowsSystem32drivers” and press Enter.
7. Type “ren filename.sys filename.old” and press Enter. (Replace “filename” with the name of the driver file that you want to rename.)
8. Type “exit” and press Enter.
9. Restart your computer and check if the error is resolved.

If the error persists, you can try updating or rolling back other drivers.

Method 4: Run CHKDSK

CHKDSK is a built-in Windows utility that can scan and repair file system errors. To run CHKDSK, follow these steps:

1. Boot your computer using the Windows installation media.
2. Select your language preferences and click “Next.”
3. Click “Repair your computer” and choose “Troubleshoot.”
4. Select “Advanced options” and click “Command Prompt.”
5. Type “chkdsk /f /r C:” and press Enter. (Replace “C:” with the drive letter of the partition that you want to scan and repair.)
6. Follow the on-screen instructions to complete the scanning process.

Method 5: Perform a Clean Install of Windows

If none of the above methods work, you can try performing a clean install of Windows. This will erase all your data and programs, so make sure to back up your important files before proceeding. To perform a clean install of Windows, follow these steps:

1. Boot your computer using the Windows installation media.
2. Select your language preferences and click “Next.”
3. Click “Install Now” and accept the license terms.
4. Choose “Custom (Advanced)” installation.
5. Select the partition where you want to install Windows and click “Next.”
6. Follow the on-screen instructions to complete the installation process.

The Windows 10 error code 0xc000021a can be frustrating and disruptive, but with these five proven solutions, you can troubleshoot and fix the issue. Whether you choose to use system restore, the Last Known Good Configuration, update or rollback drivers, run CHKDSK, or perform a clean install of Windows, make sure to back up your data and follow the instructions carefully. With a little patience and effort, you can get your computer back up and running smoothly.

In conclusion, the Windows 10 error code 0xc000021a can be a frustrating issue to deal with, but it’s not impossible to fix. By following the five proven solutions we’ve outlined in this post, you can troubleshoot and resolve the error code quickly and efficiently. Remember to always back up your data before attempting any fixes, and if you’re not comfortable with any of the solutions, seek professional help. With these tips, you can get your computer up and running smoothly once again.