5 Ways to Repair the .NET Framework on Windows
A fully functional .NET Framework is necessary to run apps built with it on your Windows PC. Any issues with the framework can cause the dependent applications to malfunction. Fortunately, Microsoft provides a dedicated repair tool that you can use to fix any issues with the .NET Framework and get your apps to run again.
If the repair tool doesn’t work, you can use other workarounds to try and fix the framework errors. So, here are a few ways you can repair .NET Framework on your Windows computer.

1. Run the .NET Framework Repair Tool
An easy way to repair your .NET Framework is to use the official .NET Framework Repair Tool provided by Microsoft on its official website. It is a handy utility that can check for common issues affecting the .NET Framework setup or updates and recommend fixes accordingly.
To run the .NET Framework Repair Tool

2. Repair .NET Framework via Optional Features
If the .NET Framework Repair Tool doesn’t work, you’re able to disable and re-enable the feature from Optional Features to repair the framework. This process will disable and re-enable the feature fixing any issue due to temporary glitches and file corruption.
Follow these steps toadd and remove optional features in Windows:

Windows will disable.NET Frameworkfrom your PC and showWindows completed the requested changesmessage. ClickRestart Nowto apply the changes.
After the restart:

3. How to Repair .NET Framework Using PowerShell
If the issue persists, try reinstalling .NET Framework on your Windows PC usingPowerShell. You can use the shell application to perform a clean install of the .NET Framework and other associated tools. Here’s how to do it.
4. How to Manually Install an Older .NET Framework Version
You can install only the latest version of .NET Framework using PowerShell. However, an app may sometimes require an older version of the .NET Framework to work. If reinstalling from the Optional Features dialog didn’t help, you can manually install the framework from the .NET Framework download page.
To manually install older versions of the .NET Framework:

5. Run the System File Checker Tool
The System File Checker tool is a built-in system repair utility that finds and fixes missing or corrupted system files. You can use the tool to fix any system issues that may conflict with the .NET Framework.
To run the System File Checker tool:
The SFC tool will now scan your system files for issues and replace any corrupted files as necessary. Wait for the verification process to complete.
The Many Ways to Repair .NET Framework on Windows
The .NET framework in the Windows operating system is required to run some critical applications. When it runs into an error, some apps may ask you to install a specific version of .NET Framework to continue using the app. If you think you have the required version of .NET Framework installed, performing a repair can help you fix any .NET framework issues.
Want to know the specific version of the .NET Framework installed on your system? Here are the several ways to find out.
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