Hello, Peter! First of all, thank you very much for your efforts! Unfortunately, it didn't work
I tried running Windows Update and the same error (80073712) appeared. Then I ran Windows Troubleshooter to check for errors in Windows Update. The tool fixed some errors and started downloading updates, but they got stuck at 5% for hours.
I also tried manually downloading the update using the Microsoft Catalog, but the installation doesn't complete and I receive the message "The update was not installed".
I attempted to use the DISM command to repair Windows Update, but the same issue persists. It can't find the source files. I also used the /LimitAccess switch, but without success.
I also tried updating by performing a clean boot, disabling all non-Microsoft services via MSCONFIG. Without success.
Recently, this warning (attached) has been appearing randomly for me. Could it be related?