Windows Update Error Code 0x80070003: How to Fix It
Medium 20-45 minutes Medium Severity
Verified June 2026
- Error Code
- 0x80070003
- Brand
- Windows Update
- Product Type
- operating_system
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 20-45 minutes
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Tools You'll Need
- Administrative access to Windows
- Internet connection
- Command Prompt
How to Fix Error Code 0x80070003
-
Stop Windows Update Services
Ensure all Windows Update processes are completely stopped before proceeding to avoid file conflicts. -
Clear SoftwareDistribution Folder
Do not delete the SoftwareDistribution folder itself, only its contents. This folder will rebuild automatically. -
Clear Catroot2 Folder
-
Restart Windows Update Services
-
Run Windows Update Troubleshooter
-
Reset Windows Update Components
Run Command Prompt as administrator to ensure proper permissions for system file modifications. -
Check for Updates
Parts You May Need
System administrator access
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Stable internet connection
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System administrator access
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Stable internet connection
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System administrator access
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Stable internet connection
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System administrator access
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Stable internet connection
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System administrator access
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Stable internet connection
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System administrator access
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Stable internet connection
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System administrator access
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Stable internet connection
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When to Call a Professional
Contact Microsoft Support or a computer technician if the error persists after following all steps, if you're uncomfortable using Command Prompt, or if you encounter system crashes during the repair process. Professional help may be needed for deeper Windows corruption issues.Frequently Asked Questions
What causes Windows Update error 0x80070003?
This error occurs when Windows cannot find update files due to corrupted SoftwareDistribution folder contents, blocked file paths, or damaged cryptographic certificates. It's often caused by incomplete previous updates or system file corruption.
Is it safe to delete SoftwareDistribution folder contents?
Yes, it's completely safe to delete the contents inside the SoftwareDistribution folder. Windows will automatically recreate these files when you check for updates again. Never delete the folder itself, only its contents.
Will I lose my installed updates if I clear these folders?
No, your installed updates remain intact. Clearing these folders only removes temporary download files and update cache. Windows will re-download only the updates that haven't been installed yet.
How long does it take to fix error 0x80070003?
The fix typically takes 20-45 minutes, including service stops, folder clearing, and update checking. The actual time depends on your internet speed when Windows re-downloads update files.
What if the error comes back after fixing it?
If error 0x80070003 returns, it may indicate deeper system corruption, antivirus interference, or disk errors. Run System File Checker (sfc /scannow), check disk health, and temporarily disable antivirus during updates.