Failed updates?

I have been struggling with persistent Windows update failures for the past several weeks, where updates download successfully but repeatedly fail during installation with various error codes, forcing me to roll back changes after each attempted reboot. I have already tried running the Windows Update Troubleshooter, clearing the SoftwareDistribution folder, and manually installing the updates via the Microsoft Update Catalog, but nothing has resolved the issue, so I would appreciate any advanced troubleshooting steps or logs analysis that could help identify the root cause.