Lumasoft

Please uninstall the Microsoft .NET Framework:

Open Programs and Features from the Windows Control Panel. An easy way to bring this up is to type "programs and features" in the search field at the bottom of the Start menu.

Uninstall everything that starts with "Microsoft .NET," doing newest versions first.

1. Open Programs and Features from the Windows Control Panel. An easy way to bring this up is to type "programs and features" in the search field at the bottom of the Start menu. 
2. Uninstall everything that starts with "Microsoft .NET," doing newest versions first.

<a href="https://www.microsoft.com/en-us/download/details.aspx?id=53345" rel="nofollow noopener noreferrer" target="_blank">Install the .NET framework again.</a>

Uninstall .NET Framework

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