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

For those of you using Visual Studio 2017 Professional, the registry key is:

HKCR\Licenses\5C505A59-E312-4B89-9508-E162F8150517

I also recommend you first export the registry key, before you delete it, so you'll have a backup if you accidentally delete the wrong key.