Taking windows xp cd key

so, i took a windows xp cd key from a computer at my highschool with the Magical Jelly Bean Keyfinder. i felt safe in doing this because that computer would never be hooked up to the internet.

i was wondering, if i took a cd key from a computer at my college, where they are hooked up to the internet: would the key work on another computer, and would it be ok? would i get a message saying the key is in use by another computer and not be able to download updates?

Its sounds like a Student Key and should be fine to use .

you'll be fine. I did the same thing and now at least 50 computers "unauthorized" computers are using it. Have yet to have a problem :)

Wish it was that easy with windows xp pro i cant validate mine as not a original key its been on 100's of computers