In this article, I will show you how to Fix: The application was unable to start correctly (0xc0000135) in Windows 11.
When trying to solve an error, the first thing that we need to do is to figure out the cause of the error, in this case, the cause being a Windows Update (KB5012643), which messes up with the .NET Framework 3.5 component, and won’t let you open applications that use that component.
- Re-Enable the .NET Framework 3.5 Component and Windows Communication Foundation
Click on the Search Box, and then type cmd. Right-click on CMD and then click on Run as administrator.
In CMD you will need to copy and paste the following commands and run them one by one:
dism /online /enable-feature /featurename:netfx3 /all
dism /online /enable-feature /featurename:WCF-HTTP-Activation
dism /online /enable-feature /featurename:WCF-NonHTTP-Activation
After every command is finished, you will need to restart the computer for the changes to take effect.
2. Uninstall the Windows Update
If the first method doesn’t fix our issue, we can always use the temporary solution, which is to uninstall the Windows Update.
To uninstall the Update, click on the Search Box and then search for Settings. In the Settings app click on Windows Update.
After that click on Update history and then on Uninstall updates. Make sure to select the update that you want to uninstall and then click on Uninstall.
The computer will be restarted, and after that, you should be good to go.
Hopefully using these methods, you managed to fix the error code.
For a more in-depth tutorial, you can watch the video below from the youtube channel.
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