Windows Server 2012 R2 BSoD Error Code 0xC000021A Fix

May 20, 2024 Adam Pope

In this article, I will discuss the steps to fix the Windows Server 2012 R2 BSoD error code 0xC000021A.

Table of Contents

Uninstall Recently Installed Software or Drivers

To do this, go to the Control Panel, then select Programs and Features. Look for any software or drivers that were recently installed and uninstall them. After uninstalling, restart the server to see if the BSoD error persists.

If the error continues, you may need to explore other troubleshooting steps such as running CHKDSK or checking the Windows Registry for any issues.

Utilize Last Known Good Configuration

Blue screen of death (BSoD) with error code 0xC000021A

To utilize Last Known Good Configuration to fix the Windows Server 2012 R2 BSoD Error Code 0xC000021A, follow these steps. First, restart your server and press F8 during startup. Select “Last Known Good Configuration” from the Advanced Boot Options menu. This will revert your system back to a previous working state. If this doesn’t resolve the issue, you may need to run a CHKDSK scan to check for any disk errors. Additionally, try restoring the system using a recent backup or running a repair using the Windows Assessment and Deployment Kit.

Run System File Checker and DISM Command

Open Command Prompt as an administrator by searching for it in the Start menu, right-clicking on it, and selecting “Run as administrator.”
Type sfc /scannow and press Enter to run the System File Checker tool.
Wait for the scan to complete. This process may take some time.
Restart your computer once the scan is finished.

DISM Command

Open Command Prompt as an administrator by searching for it in the Start menu, right-clicking on it, and selecting “Run as administrator.”
Type Dism /Online /Cleanup-Image /RestoreHealth and press Enter to run the DISM command.
Wait for the command to complete. This process may take some time.
Restart your computer once the command is finished.

Perform System Image Recovery and Backup Precautions

Perform System Image Recovery and Backup Precautions to fix BSoD Error Code 0xC000021A in Windows Server 2012 R2. To start, create a system image backup of your server to ensure you have a safe point to restore to in case of any issues. Use Windows Server Backup or a third-party software to create this backup. Additionally, perform regular backups of your important data to prevent any loss in case of a system failure.

It is also advisable to create a system repair disc or USB drive to easily access recovery options.