Windows 11 KB5013943 patch causes blue screen, black screen, errors in Teams and Discord

The latest Windows 11 21H2 Patch Tuesday update (build 22000.675), codenamed KB5013943 in Microsoft’s May Patch Tuesday release, was released last night, however, it didn’t seem to fix many problems and caused more problems for a lot of people. The error from the update may be related to the removal of the .NET 3.5 framework.

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After installing Tuesday’s patch, some users got the following error message when trying to launch applications such as Discord, Capture One Pro, Garmin Express, MusicBee, Motu USB Sound Card Control Panel, and Fanatec Control Panel.

Application Error: The application failed to start correctly (0x0000135), click “OK” to close the application.

Some users reported that reinstalling the .NET 3.5 components resolved the issues they were experiencing. However, this workaround might not work for everyone, in which case rolling back the update might be the only other option.

Reports on Feedback Hub are also emerging, with a large number of users reporting different kinds of issues, including Phone Link not working, black screen, blue screen, and more, as shown in the image below (click to enlarge). Redditors have also reported some issues on the build 22000.675 (KB5013943) thread, including some of the above.

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