Windows Update Fails
Answer a couple of questions and get the exact fix.
What happens when you try to update Windows?
Why does this happen?
A Windows update that keeps failing is usually low disk space, a corrupted update cache, or a stuck service. The fixer below covers error codes, stuck percentages and rollbacks.
Common causes
- Not enough free disk space.
- A corrupted update cache.
- A Windows Update service that's stuck.
- A driver conflicting with the update.
Symptoms
- An error code appears during install.
- The update sticks at a percentage.
- Windows 'undoes changes' after restart.
- Updates never finish downloading.
Frequently asked questions
How do I fix a Windows update that keeps failing?
Run the Windows Update troubleshooter, free up disk space, and clear the update cache by stopping the Windows Update service and deleting the SoftwareDistribution folder.
Why does Windows undo my update?
The update failed during install, usually from low disk space or a driver conflict. Free space, disconnect extra USB devices, and retry.