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 ...
Neowin

Windows 10 Update error 0x80070643? Pretend it is not there, says Microsoft

Modern Windows versions receive plenty of updates to keep your PC safe and stable, and with such a complex product, occasional errors and missteps are hardly surprising. Microsoft has plenty of tools ...
Bleeping Computer

Microsoft tells Windows users to ignore 0x80070643 WinRE errors

Microsoft says some users might see 0x80070643 installation failures when trying to deploy the April 2025 Windows Recovery Environment (WinRE) updates. The known issue impacts the KB5057589 WinRE ...
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, ...
ExtremeTech

Microsoft: Windows 10 April 2025 Update Error 0x80070643 Is Harmless, No Action Needed

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Bleeping Computer

Microsoft working on a fix for Windows 10 0x80070643 errors

Microsoft is working to fix a known issue causing 0x80070643 errors when installing the KB5034441 security update that patches the CVE-2024-20666 BitLocker vulnerability. While the security issue was ...