How to Fix Windows Update Error Code 0xC80003F3

How to Fix Windows Update Error Code 0xC80003F3

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How to Fix Windows Update Error Code 0xC80003F3

Windows Update error 0xC80003F3 occurs when update components are blocked or corrupted. Here's a simple, streamlined fix:

1. Reset Update Components
Open Command Prompt as administrator and run:

net stop wuauserv  

net stop bits  

net stop cryptsvc  

ren C:WindowsSoftwareDistribution SoftwareDistribution.old  

ren C:WindowsSystem32catroot2 Catroot2.old  

net start wuauserv  

net start bits  

net start cryptsvc

2. Run the Windows Update Troubleshooter
Go to Settings → Update & Security → Troubleshoot, select Windows Update, and run the tool to automatically fix common issues.

3. Repair System Files
In the same elevated Command Prompt, execute:

sfc /scannow

This checks and repairs corrupted Windows files that may block updates.

4. Disable Antivirus/Firewall Temporarily
Security software can interfere with update downloads—turn it off, check for updates, and then re-enable protection.

5. Restart and Retry Windows Update
Reboot your PC and head to Settings → Update & Security → Windows Update to try installing updates again.

For a complete, step-by-step walkthrough, including advanced troubleshooting options, visit this detailed guide.

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