I bought Windows 8 Professional, updated to it from my Win 7 Pro and it's great. All in all, I wanna keep using Windows 8, but something went wrong with my Visual Studio 2012 Professional installation. Now there is no way I can install the target version for .NET 4.0, and I really need this to comply with old projects without affecting other developers.
I do have an official license key, bought when installing Windows 8, so my question is, now that I need to format, then reinstall Win 7 Pro, then reupgrade to Win 8 Pro, how do I make sure my next activation is successful?
In other words, how can I not change, but remove my license so I can use it again when everything is fresh and updated?