Basically, I formatted my computer while I was back in London for the easter break, but hadn't anticipated having to do it so I left my CD Key back in Nottingham. I found myself a random CD Key off the web so that I could actually install windows, knowing I'd have the 30 Day period to sort stuff out. That time has almost run out and I'd like to activate windows. Is there any way via Registry etc that I can change my CD Key to my actual one so I can web-authenticate my copy of windows? Cheers.