How to change Visual Studio 2012,2013 or 2015 License Key?

Question

I have a Copy of Visual Studio 2012 Pro on my machine with a Serial key that i\'m no longer suppose to use because i have to use another one. My problem is i keep Uninstalli

Answer 1

The solution with removing the license information from the registry also works with Visual Studio 2013, but as described in the answer above, it is important to execute a "repair" on Visual Studio.