If your PC is running Windows 11, check for the latest Microsoft updates and uninstall KB5012643 and KB5013943, two buggy versions that cause several issues, even causing blue screens.
Microsoft is definitely having bad luck at the moment. The publisher has indeed published two updates for Windows 11 in quick succession which generate more problems than they correct. Stamped KB5012643 and dated April 25, 2022 (see our practical sheet on KBs and Windows builds), the first caused several problems, in particular a delicate installation, difficulties in entering safe mode and, above all, crashes of various applications. As the publisher explained on his page Windows 11 Known Issues and Notifications, the main problem came from a bug located in the .NET framework, a module used by Windows components and by many software. However, if the other defects of this version have been resolved, this bug has not yet been corrected but simply “attenuated”, to use the pretty expression of the publisher.
The second update, called KB5013943, was released on May 10. And it was supposed to finally fix all the bugs in KB5012643. But Microsoft developers, no doubt pressed for time, obviously forgot to tighten a few bolts before deploying it. Because the patch does even more harm, by causing the famous blue screens (the BSODs, see our practical sheet) and by forcing the crashed PC to restart. This is of the worst effect, especially since Windows 11 is struggling to convince, six months after its official release. Not really the kind of thing that motivates to abandon Windows 10, even if the update remains free…
In fact, the only solution recommended by Microsoft is to purely and simply uninstall these problematic updates, until a permanent solution is found.
- To remove KB5012643 and KB5013943, open Windows 11 Settings with the hotkey Windows+Ithen click Windows Update in the left pane.
- In the central part, then click on Update history. The list of latest updates is displayed. If you see above 2022-04 Cumulative Update for Windows 11 for x64-based Systems (KB5012643)it is that you are well concerned.
- Then scroll down the window and click Uninstall updates.
- A new window appears listing the latest updates. Click on Update for Microsoft Windows (KB5012643) – yes, the legendary consistency of Microsoft in its names… – to select it, then click on the small button Uninstall above.
- An alert window will appear asking you for confirmation. Click on Yes to validate.
- Repeat the operation with KB5013943 following the same process.
You will automatically revert to the previous version of Windows 11. Now all you have to do is wait for Microsoft to release a good patch of the patch. Like what, when all is well, it is useless – even imprudent – to rush on the updates…