Your Windows 11 PC has been crashing for a few days? The problem comes from update KB5012643 of April 25, 2022. To the point that Microsoft simply recommends uninstalling it without delay…
We know that the best is sometimes – often? – the enemy of good. And operating systems are no exception to this popular adage. Thus, it is not uncommon for an update to cause more problems than it solves. This is the case for macOS and iOS, as recent news shows, but also for Windows, Microsoft’s OS being also faced with a multitude of configurations, which does not help. This is the case with the latest version released for Windows 11. Stamped KB5012643 and dated April 25, 2022 (see our practical sheet on KBs and Windows builds), this update would cause several problems, in particular a difficult installation, difficulties in entering safe mode and, above all, crashes of various apps. As Microsoft honestly explains on its page Windows 11 Known Issues and Notificationsthe main problem would come 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 is not yet corrected but simply “attenuated”, to use the nice expression of the editor. In fact, the only solution recommended by Microsoft is to purely and simply uninstall this problematic update, until a permanent solution is found. To remove KB5012643, open Windows 11 Settings with 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. 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. Like what, when all is well, it is useless – even imprudent – to rush on the updates…