While trying to install Windows update along with other updates like .NET Framework updates, and it is failing with error 0x80070641, then this guide will help you ...

Earlier this year, Microsoft promised it was working on fix for "0x80070643 - ERROR_INSTALL_FAILURE that was happening when trying to install Windows 10 KB5034441 update. However, that's not to be.

Microsoft is pushing out a Windows 10 KB5001716 update used to improve Windows Update that is ironically failing to install, showing 0x80070643 errors. Titled 'KB5001716: Update for Windows Update ...

One user writes they already increased their Windows Recovery Partition size - which is an official workaround - but that did not work. This is not surprising as the KB5034441/KB5034440 were WinRE ...