(11-02-2017, 12:53 AM)KHg8m3r Wrote: Usually the key is display on a sticker on the outside of the computer case, and is good for a few computers/installs. Concurrent installs is a different matter and depends on your key that you have, but it never hurts to try.
I don't think anything but the biggest, baddest datacentre keys allow concurrent installation - I have a win7 retail key I've been rolling along with upgrades to my pc, and after the first one every time I activated on a "new" pc I had to call the automatic phone line to "press one to say this is the only installation of this key". I assume that would have de-activated any other installs of that same key.