How to Fix a CLR Error in a Computer

1. Remove any compatibility statements that are checked in the compatibility section of the system. To remove program compatibilities, navigate to the folder where the program is stored on the computer's hard drive, right-click the program name, hover over 'Properties' in the window that comes up and select 'Compatibility.' Uncheck any boxes that are checked in the window and click 'OK' for the changes to take effect.
2. Open the 'Start' menu and go to 'Control Panel.' Select 'Add/Remove Programs' or 'Uninstall a Program' from the menu. Scroll down the application list to the .NET frameworks. Right-click on each framework's name and click 'Uninstall' to remove each program from the computer.
3. Restart the computer to ensure that each .NET framework has been removed from the system. When the computer reloads, the frameworks will be gone.
4. Download the latest version of the .NET framework from Microsoft (see Resources). You will need only the one framework, as the features of the other frameworks will be automatically installed along with the newest version of the program, along with all of the necessary files and drivers.
5. Install the latest version of the .NET framework on the computer by double-clicking the setup icon in the 'Downloads' folder and following the instructions on the installation screens. Restart the computer and the framework will be installed on the system.