I put a fresh copy of Parallels on a new M1 Air. I downloaded and installed the M1 preview build, which is Win 10 pro. How do I activate it? If I buy Win 10 pro, does that come with an activation key that I can enter? As it is it's pretty useless because I can't "personalize" or customize anything. I can't even sign in with my password because it's not activated. Two days with MS support have made me realize (again) how great Apple tech support is, and how utterly awful MS support is. So any help appreciated!