@Tman , what do you mean by "registering your account with Microsoft"? You mean just activating Windows or whatever, or something else?
Speaking of Windows, is there a way to grab the Windows 10 installer from a legit source, install it on an SSD, do whatever hardware testing is required, then activating the Windows 10 with a retail Windows 7 key that you don't plan to use anymore (I've heard that works--although just now the chat person on the MS store said no go)?
Or should I just get some kind of Linux "distro on a stick" that will let me do the testing with memtest86+, Prime95 etc.?