Windows 11 · Windows
Troubleshoot a Windows 'Update Failed' Error
Source-checked About 10 minutes
Answer
Record the Windows Update code, run the Get Help troubleshooter, apply matching recommendations, restart, and retry once.
Before you start
Copy the update name, KB number, error code, date, Windows edition, and available storage before attempting repair. Keep the PC on power and back up important data; do not reset services or delete update databases without a symptom-specific Microsoft instruction.
Record the error code
Open Windows Update and copy the exact failed-update message or code. Open Windows Update history and record the exact failed item instead of relying only on the generic Update failed banner.
Run the Windows Update troubleshooter
Open Get Help, search for Windows Update troubleshooter, and follow its diagnostics and recommendations. Run the Windows Update troubleshooter in Get Help and read each detected issue before applying its recommendation.
Restart and retry the update
Restart Windows and try the update again; use the recorded code if you need further Microsoft support. Restart normally, return to Windows Update, and retry once while keeping VPN or managed-network requirements consistent.
Verify the result
Check Update history for a successful installation and run winver or Settings > System > About when a feature version was involved. Confirm the PC restarts and normal apps work.
Troubleshoot Windows Update failure
If the same code returns, search Microsoft Support for that exact code and KB, check storage and service health, and contact the administrator for managed PCs. Avoid copied service-reset scripts and third-party update repair tools. If the failed item is a firmware or driver update, use the PC manufacturer's support information before manually replacing it. Keep BitLocker or device-encryption recovery information available before any repair that could affect startup.
Video walkthrough
Sources and verification
Checked against official documentation on . Scope: Windows.
Follow the linked first-party guidance if labels differ after a platform or app update.