Microsoft has just released a May security update for Windows 11, but it is already causing problems. KB5013943 Version fixes only 75 vulnerabilities, but does not fix the application crash error. In fact, its installation exacerbates the problem
The problem affects applications that use the NET Framework. According to the latest Windows reports, users have complained about the following programs through the Microsoft Contact Center.
- Microsoft Teams
- Visual Studio Installer
- Corsair ICUE
- Corsair Service
The error does not affect all users of these programs, but if you see this error message, you know what caused it:
“The application could not start properly (0xc0000135). Click OK to close the program. “
In general, if you have not installed the update, it is worth postponing it. This is technically mandatory, so it can be downloaded automatically in the background, but the installation requires a reboot, which you can avoid.
Microsoft has not yet released an amendment, but two unofficial solutions may solve the problem for you
How to fix Windows 11 KB5013943 application crashes
While we are waiting for the official patch, there is another potential solution. The error appears to be due to a compatibility issue between Windows 11 and the .NET Framework, so reinstalling both versions 3.5 and 4.8 should resolve it. Here’s how to do it
- Click the search icon next to the Start menu, then type “Turn Windows features on or off.”
- Open the appropriate option and a window will appear as follows.
- Uncheck the boxes next to “.NET Framework 3.5 (includes .NET 2.0 and 3.0)” and “.NET Framwork 4.8 Advanced Services,” and then check again.
- Click “OK” to confirm, then restart your device to apply the changes
If this doesn’t work and the software crashes are very annoying, you can delete the update completely, but it will only work if you install it today or yesterday.
- open the settings
- Click the “Windows Update” button in the left pane, then the “Update History” button.
3. Scroll to the section labeled “Related Settings” and click the “Delete Updates” button.
All recently installed updates are displayed here. Click “Delete” next to the KB5013943 update and click “Delete” again to confirm.
5. When done, restart your device to apply the changes
If this does not resolve the issue, it may be due to a previous optional update in which the first reported program crashed. In this scenario, or if more than a day has passed since the update was installed, you should wait for Microsoft to release the patch.