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If your Windows 10/Windows 11 has been plagued by the 0x80070643 error, Microsoft just released a fix
There is some work you have to do, but it fixes the error.
2 min. read
Published onJuly 11, 2024
published onJuly 11, 2024
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The “0x80070643 – ERROR_INSTALL_FAILURE” message feared by Windows PC users is a notorious error that has haunted Windows devicesfor months. However, you should know that Microsoft has now offered a solution for this problem on both Windows versions.
The heart of this trouble lies in two updates, KB5034441 and KB5034440, which were made to fix a particular Secure Boot bypass vulnerability. People were expecting a normal update experience but saw an error message on their screens.
For some time now, Microsoft has been working hard to solve this problem by providing solutions and instructions for users dealing with these issues.
Microsoft’s recommendation is simple: if yourWindows Recovery Environment (WinRE) is already updatedor you don’t have a WinRE partition, you don’t need to do anything. This may relieve some people, but what about those who still have the problem?
Microsoft advises checking their WinRE version and making sure they have adequate space in the recovery partition. For the update to be installed properly, you must have a minimum of 250 MB of free space. If there’s not enough room, they’ve provided guidelines and a script that will assist with resizing your partition.
Unfortunately, there’s no auto-fix. Some hands-on work is needed, so prepare yourself for that part of the process. It may be inconvenient, but Microsoft has provided a thorough guide to make it less troublesome. You can find the guide forWindows 10 here, while the guide forWindows 11 devices is here. After making the needed changes, go to Windows Update. That should fix things for you.
If you come across the “0x80070643” error, it is not a complete stop. Microsoft’s new guidance provides a way to fix it, even though some do-it-yourself steps are needed. So, have you checked your WinRE status? Let us know if you managed to fix your device.
More about the topics:windows 10,Windows 11
Claudiu Andone
Windows Toubleshooting Expert
Oldtimer in the tech and science press, Claudiu is focused on whatever comes new from Microsoft.
His abrupt interest in computers started when he saw the first Home Computer as a kid. However, his passion for Windows and everything related became obvious when he became a sys admin in a computer science high school.
With 14 years of experience in writing about everything there is to know about science and technology, Claudiu also likes rock music, chilling in the garden, and Star Wars. May the force be with you, always!
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Claudiu Andone
Windows Toubleshooting Expert
Oldtimer in the tech and science press, with 14 years of experience in writing on everything there is to know about science, technology, and Microsoft
