So this is a newbie one. I upgraded from hdd to m.2 and the hdd remained unplugged in the case. Will it do anything if I take out the add from the pc and plug the old hdd. I know I can have both simulationsly but generally speaking will it wipe the ssd or something... I then want to unplug the hdd with win 7 and get back to my ssd with its windows 10 installed etc is it safe