0xc000021a is a Windows error code that indicates a critical system process has failed. This can be caused by a variety of issues, including hardware or software problems, corrupt system files, or malware. When this error occurs, Windows will typically crash and restart. In some cases, it may be possible to use a recovery tool to fix the problem and avoid having to reinstall Windows.
Other common searches for this error include:
- error code 0xc000021a
1. Restart your computer
- Boot your computer into Safe Mode with Networking
- Use the Command Prompt to navigate to the location of the "Command Prompt" folder:
- Type "restart" and press Enter
- Once your computer restarts, you will be prompted to choose an option. Select "Reboot" and press Enter
- After your computer restarts, you will be prompted to choose an option. Select "Repair your computer" and press Enter
- If prompted, provide your administrator password. Click "Next"
- Select "System Restore" and press Enter
- In the "Select a restore point" window, choose a restore point from the list and press Enter
- In the "Select a destination" window, choose a destination from the list and press Enter
- In the "Confirm restoration" window, click "Restore" and press Enter
2. Run the Windows Memory Diagnostic Tool
- Open the Windows Memory Diagnostic Tool by typing "mem" in the Start menu search bar and pressing Enter.
- On the main window, click the "Start" button, and then click "Run."
- In theRun window, type "mem" and then click OK.
- On the main window, click the "Diagnostics" tab, and then click the "Windows Memory Diagnostic" button.
- On theWindows Memory Diagnostic window, click the "Startup Memory" button to start the tool.
- On the Startup Memory window, click the "OK" button to start the tool.
- On the Startup Memory window, the tool will analyze the memory of the computer.
- When the tool is finished, on the Startup Memory window, click the "Close" button.
3. Run a virus scan
- Open the device manager.
- Right-click on the "Computer" icon and select "Properties".
- On the "General" tab, click on the "Status" button.
- In the "Status" window, under the "Component" column, select "System".
- Click on the "Check Now" button.
- If there are any errors, click on the "Fix" button.
- Click on the "OK" button.
4. Run the System File Checker
- Launch the System File Checker by going to Start -> Run and typing "sfc /scannow".
- If the System File Checker finds any errors, it will display an error message and offer you the option to fix the problem. Click on the "Fix Errors" button.
- The System File Checker will scan your computer for missing, corrupt, or damaged system files. If it finds any problems, it will offer to fix them. Click on the "Fix Files" button.
- The System File Checker will require that you reboot your computer to complete the repairs. Click on the "Restart Now" button to restart your computer.
5. Update your drivers
If you are experiencing an issue with your computer where Windows is not recognizing any of your devices, then it is likely that you need to update your drivers. To do this, you will need to locate the appropriate driver for your device, and then download and install the driver. After you have installed the driver, you will need to restart your computer in order to activate the driver.
Still not working? maybe try one of these options:
- Check for hard drive corruption
- Roll back your drivers
- Disable Fast Startup
- Perform a clean boot
- Try a System Restore