How to fix error 0xc0000135 in Windows 11 (solving problems with update KB5013943)

Windows updates in the past have had a notorious reputation for introducing more bugs than they fix. While Microsoft has recently managed to fix such issues, the recent update seems to take us back to an old era. Windows 11 update KB5013943 seems to be the latest culprit causing 0xc0000135 errors on many PCs. So, if you are in the same boat, then here is how you can fix the same on your system. 

What is error 0xc0000135 and why am I getting it?

Error code 0xc0000135 according to official Microsoft documentation refers to problems. net framework. It appears that many applications require . Net Framework 3.5 cannot use it with the latest Windows 11 update. 

This is what results in error code 0xc0000135 and you can fix the same by enabling. Net Framework 3.5 on your PC. 

Most modern applications rely on files. dll. Net Framework to run in the background as intended. However, applications refer to versions. Net Framework, which means that applications that require version 3.5 will not work with version 4.0, and vice versa. 

So you can fix this error code by enabling or installing. Net Framework 3.5 on your Windows 11 PC. 

In addition to this, the issue can also be caused by leftover cache files from a previous update or outdated drivers that are not currently compatible with the latest Windows 11 update. Use the guide below to fix this error on your PC. 

How to Fix Error Code 0xc0000135 in Windows 11

As discussed above, you can fix this error code basically by enabling/installing. Net Framework 3.5 on your computer. However, if this fix does not work for you, you can try one of the other fixes mentioned in this guide. Let’s start. 

Fix 1: Turn on. Net Framework 3.5.

Although ideally. Net Framework 3.5 must be installed on your PC, some later features still need to be manually enabled depending on user preference. Enabling these sub-features should help you resolve error code 0xc0000135 on your PC. To get started, follow any of the methods below. 

Method 1: Using advanced Windows features

Click Windows + Rto launch Run.

Enter the following command and press Enter


Now scroll through the list to find. Net Framework 3.5 in the list, click and expand it. Check the box for. Net Framework 3.5 if not already installed.

Check the boxes for the following lists. 

  • Windows Communication Foundation HTTP Activation
  • Windows Communication Foundation activation without HTTP

Now click and expand Advanced Services. Net Framework 4.8. Check the box for the same if it is not checked.

Also check the boxes for the following lists. 

  • ASP. NET 4.8
  • WCF Services

Click OK.

The selected features will now be installed on your system and you may be prompted to reboot. We recommend that you reboot as soon as possible, and then try again to use the application causing the 0xc0000135 error. If everything worked as intended, error 0xc0000135 should now be resolved on your system. 

Method 2: Using CMD

We can also enable and install the same features using CMD. Follow the guide below to help you through the process.

Click Windows + Rto open the Run dialog box. 

Enter the following and press Ctrl + Shift + Enter.


Now use the following commands to install. Net Framework 3.5 and 4.8 on your computer. Run each command one by one to complete the process. 

  • dism /online /enable-feature /featurename:netfx3 /all
  • dism /online /enable-feature /featurename:WCF-HTTP-Activation
  • dism /online /enable-feature /featurename:WCF-NonHTTP-Activation

Just in case, restart your computer and error 0xc0000135 should now be fixed when running third party apps.

Fix 2: Clear Cache Files

There is no single switch for clearing cache files in Windows 11, especially if you want to clear system cache files. Thus, you can use this comprehensive post from us to completely remove cache files from your system. 

Remaining cache files are known to cause issues with. Net Framework, especially in systems that virtualize various environments. If you have a similar computer, we recommend that you follow this guide to clear cache files from your computer. 

Fix 3: Last resort: uninstall update KB5013943.

This is not a recommended solution, but if you are desperate to get everything working again on your PC, you can uninstall the latest Windows 11 update, for example: KB5013943. Use the guide below to remove Windows updates from your system. 

Click Windows + ito launch settings. Click Windows Update.

Click Update History.

Scroll down and click Uninstall Updates.

Click Uninstall next to KB5013943.

Click Remove again to confirm your choice. 

The selected update will be removed from your system. Your system should automatically reboot once this process is complete. If this is not the case, we recommend restarting it manually. After rebooting, your computer should be working as expected and you should no longer encounter error 0xc0000135. 

We hope this post helped you fix error 0xc0000135 on your system. If you run into any issues or have additional questions for us, feel free to contact us using the comments below. 

Leave a Reply

Your email address will not be published.