Bleeping Computer

Windows 10 KB5001716 update fails with 0x80070643 errors, how to fix

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 ...
Neowin

Windows 10 KB5048239 causes 0x80070643 error but Microsoft already has an official fix0 0

The infamous "0x80070643 - ERROR_INSTALL_FAILURE" issue is back with one of the new Windows 10 updates KB5048239. Thankfully, there is a fix. This past week, alongside the Patch Tuesday updates for ...
Ars Technica

Windows 10 failed to install an update - Error 0x80070643

I'm betting you could do a fresh install from the latest media creation tool and it will take care of it. I would hope so anyway. I think that is what I would do in your situation, backup everything, ...
Bleeping Computer

Windows 10 KB5034441 security update fails with 0x80070643 errors

1/11/24 update added below. Windows 10 users worldwide report problems installing Microsoft's January Patch Tuesday updates, getting 0x80070643 errors when attempting to install the KB5034441 security ...
Neowin

Windows 10 KB5001716 install fails with 0x80070643 error but a fix seemingly exists

However, searching for updates, it still gives me the "new" along with the error, again. Hence, if you seem to be facing installation issues with this update, it looks like the best bet is to ...