On 14 January 2016 at 16:50, mbsoftwaresolutions@mbsoftwaresolutions.com wrote:
As of today, I've got 1 machine (which I backup frequently for disaster recovery reasons). I should probably buy a 2nd machine, and I'm guessing that would have Win10 by default (fresh from the start; not an upgrade) and then I could have both Win7 and Win10 in which to test things, but perhaps I should just let Windows upgrade itself to Win10 since it's free?
Try the upgrade. If you have problems there is always an option to reset the PC, which does a clean install.