Windows 11 – Error 0xc0000135 following KB5013943

Yesterday I indicated that a new update for Windows 11 was available, the famous KB5013943 and unfortunately as often it also brings its share of disappointments. and in particular a beautiful error 0xc0000135. Fortunately there is a workaround that I detail in the tutorial.

KB5013943 causes error 0xc0000135

If your applications no longer work, it’s probably linked to the Windows 11 update. Indeed, although it fixes many bugs, it also brings others.

Applications that use the technology of the NET FRAMEWORK (version 3.5 or 4) can no longer start.

An identified error 0xc0000135 appears on the screen.

Error message 0xc0000135 on Windows 11
Here is the error following the installation of the KB5013943

The mistake 0xc0000135 indicates that the application was unable to find a dll-file necessary for the proper functioning of the program, therefore it cannot start.

Of course you can uninstall update KB5013943 of Windows 11 but your computer will no longer be protected. This is why we recommend a workaround for the moment.

A workaround for error 0xc0000135

Two methods are proposed to you, the first is the uninstallation of the Framework 3.5 via the Control Panel and Programs & Features. The second solution in command line.

Reinstall Framework from Control Panel

To work around the problem, you have to reinstall Framework 3.5, the easiest way is to go through the control panel.

Framework 3.5 features on Windows 11
Uncheck then recheck the box to reinstall the Framework.

To reinstall Framework 3.5 and 4.8, go to Control Panel > Programs > Turn Windows Features On or Off and uncheck the box .NET Framework 3.5 (includes .NET 2.0 and 3.0) as well as .Net Framework 4.8.

Then check the box to reinstall the Framework.

Restart your computer, test your applications it should work.

Install the Framework from the command line

Thanks to the following commands you can easily and install the Framework. You can open thecommand prompt as administrator or the Powershell command prompt.

dism /online /enable-feature /featurename:netfx3 /all

dism /online /enable-feature /featurename:WCF-HTTP-Activation

dism /online /enable-feature /featurename:WCF-NonHTTP-Activation

Restart your computer and it should be OK.

If you can’t do that, you still have to uninstall the KB but this is not recommended since it corrects important security vulnerabilities on the Windows 11 system.

This tutorial was made using this Source