Step-by-Step Guide to Fix Error 0x80070020

0x80070020 Error: Update Process Interrupted by Another Program

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What is Error 0x80070020?


Error code 0x80070020 occurs in Windows Update when another process (often antivirus software or background applications) interferes with the update installation. This can prevent your system from downloading or installing updates correctly.

Causes

  • Antivirus Interference: Security software can block or interrupt Windows updates during scanning or protection activities.
  • Background Processes: Running applications or system tasks may interfere with update files or services.
  • Update Services Corruption: Issues within Windows Update components or services like BITS or wuauserv.
  • SoftwareDistribution Folder Corruption: Temporary files related to updates may be corrupted.
  • Insufficient Permissions: Running Windows Update without administrative rights may result in access-denied errors.

Resolution Steps




1.Restart Your Computer:

Sometimes a simple restart can resolve background process conflicts that interfere with Windows Update.

2.Temporarily Disable Antivirus/Firewall:

Disable your antivirus or firewall temporarily to check if it is blocking the update process. Don’t forget to re-enable it afterward.

3.Run Windows Update Troubleshooter:

Go to Settings → Update & Security → Troubleshoot → Additional troubleshooters → Select Windows Update → Click Run the troubleshooter and follow the on-screen instructions.

4.Stop Update Services and Clear Cache:

  • Press Win + R, type services.msc, and press Enter.
  • Stop the following services:
  • Windows Update (wuauserv)
  • Background Intelligent Transfer Service (BITS)
  • Navigate to C:\Windows\SoftwareDistribution and delete all contents.
  • Restart the stopped services and try updating again.

5.Perform a Clean Boot:

Run msconfig → Services tab → Check Hide all Microsoft services → Click Disable all.

Go to the Startup tab → Open Task Manager → Disable all startup items → Restart your PC.

Then try Windows Update again.

6.Reset Windows Update Components:

Open Command Prompt as Administrator and enter these commands one by one:

net stop wuauserv

net stop bits

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

ren C:\Windows\System32\catroot2 catroot2.old

net start wuauserv

net start bits

7.Run SFC and DISM Scans:

Open Command Prompt as Administrator and run the following:

sfc /scannow

DISM /Online /Cleanup-Image /RestoreHealth

This will scan for and fix any system file issues that could affect the update process.

8.Use Windows Update Assistant:

Go to the Microsoft Update Assistant page. Download and run the tool to manually install pending updates.

9.Check for Background Software Conflicts:

Check Task Manager for any apps running in the background that may be interfering. Close unnecessary applications before running updates.

10.Check Disk for Errors:

Open Command Prompt as Administrator and run:

chkdsk /f /r

Schedule it if prompted, and restart your computer.

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