Fix Windows Update Error 0x80070020
Windows Update error 0x80070020 usually means another program is using or locking files that Windows Update needs in order to install updates.
Try the fastest fix for 0x80070020
If you want to avoid working through manual repair steps first, you can start with an automated scan. It can check for corrupted system files, broken services, and other windows update problems commonly tied to error 0x80070020.
Manual fixes are listed below if you prefer to troubleshoot it yourself first.
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What it means
Error 0x80070020 usually appears when Windows Update tries to use a file that is already being used by another process. In plain English, something else on the PC is getting in the way. Common causes include antivirus scans, backup software, installer processes, or background services that temporarily lock update files and stop Windows Update from finishing cleanly.
Try this first
- Restart your PC and try Windows Update again.
- Close installer windows and pause antivirus scans temporarily.
- Try the update again after a clean boot if background software keeps interfering.
Want to skip the more advanced repair steps?
The next steps may involve deeper troubleshooting, system repair commands, or repeated testing. If you want to try a faster automated option before continuing, run a scan for 0x80070020 first.
Good option if you would rather avoid command-line work and longer manual troubleshooting.
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Advanced steps
- Run the Windows Update Troubleshooter.
- Run System File Checker in Command Prompt: sfc /scannow
- Reset Windows Update components if the error keeps returning.
Related Windows Update Errors
Windows Update problems often appear in clusters. These related update and servicing guides may help you troubleshoot the next issue faster.
Reset Windows Update Components and Clear File Locks
If another program is locking files Windows Update needs, restarting update services and resetting the update cache is the safest next step. This often clears stuck file handles and lets the update process start fresh.
Run these commands one at a time in Command Prompt as Administrator:
Restart your PC after the commands finish, then try Windows Update again. If the error returns immediately, look for antivirus, backup tools, or other installers still running in the background.
Related Windows Errors
If you’re seeing multiple errors, these related guides may also help:
If the Error Still Persists
If background software or damaged system components keep locking update files, manual steps may not fully stop repeated 0x80070020 errors.
An automated Windows repair tool can scan for common Windows issues and repair them automatically.
Best if you want to try a faster repair path before spending more time on manual fixes.
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Frequently Asked Questions
What causes error 0x80070020?
This error usually occurs when a required Windows component, service, or system file is not working correctly. It may be caused by corrupted system files, disabled services, failed updates, or software conflicts.
Is error 0x80070020 dangerous?
The error itself is not dangerous, but it can prevent Windows features, updates, or applications from working properly. If ignored, it may lead to stability or security issues over time.
Can error 0x80070020 be fixed without reinstalling Windows?
Yes. In most cases, this error can be resolved using troubleshooting steps such as repairing system files, enabling required services, or using automated repair tools, without needing to reinstall Windows.