Microsoft are $h1t, generally I like them as a company but all this activation stuff pisses me off.

Basically I have two PC's which both have valid XP Pro license keys attached to them. They didn't come with a re-install CD so I have downloaded an XP Pro image to install from. Of course the license keys I have aren't accepted (nothing is ever easy).

So I installed with a key that came with the CD image that I installed from. But I want to be legal on the machines so I can get updates etc so how can I change the keys to the valid keys that I have with the machines (little MS stickers on the side)?

Any help mucho appreciated.

Paul

P.S. The XP Pro image I downloaded is asking for a volume license key.