Wait Before Acting:

Large updates can take hours. Wait at least an hour before considering an update stuck. Don't interrupt unless absolutely necessary.

Run Update Troubleshooter:

Settings > Update & Security > Troubleshoot > Windows Update. Microsoft's tool resolves common update problems automatically.

Reset Update Components:

Stop services: wuauserv, bits, cryptsvc. Delete SoftwareDistribution and catroot2 folder contents. Restart services and try again.

Clear Windows Update Cache:

Navigate to C:WindowsSoftwareDistributionDownload. Delete all contents. This forces re-download of update files.

Free Up Disk Space:

Updates require significant free space. Clear temporary files, empty Recycle Bin. At least 20GB free is recommended.

Manually Download Updates:

Find the KB number in Update History. Download from Microsoft Update Catalog. Install manually to bypass issues.

Conclusion:

The troubleshooter resolves most issues. Resetting components works for persistent problems. Manual installation is a reliable fallback.