Microsoft recently published a guide meant to be useful for fixing various installation errors. Unfortunately, it proves useless as KB5058411 installs fail. But a user has found a fix.

Microsoft's Patch Tuesday for May (KB5026372) is causing various issues. The update is failing to install for several users, causing VPN issues, persisting Windows Security bugs, among others.

Fix error The installation failed in the SAFE_OS phase during INSTALL_UPDATES, 0x800F081F - 0x20003 when upgrading your copy of Windows 11/10.

How to access the Dark Web using the Tor Browser. How to enable Kernel-mode Hardware-enforced Stack Protection in Windows 11. How to use the Windows Registry Editor ...

Open the Windows Settings > System > Troubleshoot > Additional troubleshooters.; Locate Windows Update Troubleshooter; Now hit Run the troubleshooter and let the Windows fix the problem automatically.

Yes. And it screwed me so bad, I ended up having to re-install Windows 10 and my SSD data drive that got wiped in the process. Trying to do that blasted 'update' like everyone else, over weeks ...