i tried windows 7 64 bit and windows 10 64 bit.
i have unity installed on both machines, though i havent had the opportunity to try uninstalling and installing it (im a bit wary of uninstalling on the windows 10 pc as i use it for work related biz).
later this week i'll have a chance to try it on a machine that doesn't have unity installed so i'll be able to let you know if works on that one.
thanks for getting back to me!