Security News > 2022 > May > Microsoft: Windows 11 KB5012643 update will break some apps

Microsoft has warned Windows 11 users that they might experience issues launching and using some.
Affected apps use optional components such as Windows Workflow and Windows Communication Foundation.
"After installing KB5012643, some.NET Framework 3.5 apps might have issues or might fail to open," Microsoft revealed on the Windows health dashboard.
The same KB5012643 issue also made some Windows apps seem unstable while running in Safe Mode.
You have to open the Windows Update settings window by searching for Windows Update in the Start menu.
From there, you need to click View Update History, hit Uninstall Update, then click "Uninstall" after selecting the KB5012643 update the list.
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