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How to Fix Windows Error 0x80070020 During Startup

Encountering the 0x80070020 error during Windows startup? This guide offers practical steps to diagnose and fix the issue, ensuring your system boots correctly.

3 min read

The 0x80070020 error during Windows startup indicates that another process is interfering with the boot process. This issue is often caused by third-party antivirus software blocking essential system files or corrupted system files disrupting the startup sequence. To resolve this error, you can perform safe checks to identify conflicts, apply specific fixes, and verify that Windows starts correctly afterward.

What does the 0x80070020 error mean?

The 0x80070020 error usually means that there is a conflict preventing Windows from booting properly. You might notice that Windows fails to load, or the system freezes during startup. This error can be linked to interference from third-party antivirus software or issues with corrupted system files.

How to safely check for conflicts

Before making any changes, perform these checks to identify potential causes of the error:

  • Disconnect all external devices (USB drives, printers, etc.) to eliminate potential hardware conflicts.
  • Boot your computer in Safe Mode: 1. Restart your computer. 2. As it restarts, repeatedly press the F8 key until the Advanced Boot Options menu appears. 3. Select 'Safe Mode' and press Enter.

If your computer starts successfully in Safe Mode, it's likely that a third-party application or driver is causing the issue.

Steps to fix the error

If you've determined that the issue is likely due to software conflicts, follow these steps to attempt a fix:

  1. Access Command Prompt as an administrator: - Right-click the Start button and select 'Windows Terminal (Admin)' or 'Command Prompt (Admin)'.
  1. Run the System File Checker (SFC) scan:

    sfc /scannow
    • This command will scan for and attempt to repair corrupted system files.
  1. If the SFC scan doesn't resolve the issue, run the DISM tool to repair the Windows image:

    DISM /Online /Cleanup-Image /RestoreHealth
    • This command checks for component store corruption and repairs it.

How to verify if the fix worked

Once you've applied the fixes, verify that the issue has been resolved by:

  1. Restarting your computer normally without Safe Mode.
  1. Observing whether Windows starts correctly and if the 0x80070020 error no longer appears. If you boot successfully, you can be reasonably assured that the issue has been fixed.

Preventing the 0x80070020 error in the future

To reduce the chances of encountering the 0x80070020 error again, consider implementing these best practices:

  • Keep your system updated with the latest Windows updates and security patches.
  • Regularly update your antivirus software and perform system scans to detect vulnerabilities.
  • Avoid using multiple antivirus programs simultaneously, as they can conflict.
  • Backup your data and create system restore points regularly to easily revert your system if issues arise.

Conclusion

If the error persists after trying these steps, you may need to consult a professional for further assistance or consider a system reset.