Overscaling

Ok so i've got the latest drivers for amd and i don't have amd control center as i used to do on my old pc. I understand that it's because it has been replaced but can i still enter in amd control center?

I have a retail Windows 10 Home license. I'm building a custom rig with 2 separate SSD. I plan to install Windows 10 Home separately on both SSD. Is it possible to reuse the same product key and activate them both since technically it is still 1 PC or machine. Everything else including the mobo...