it is either an illegal copy or she is breaking copy right - if it's not an original disk with a key and watermark it's a fake which ever way you look at it.
That aside the only hope you have is contacting the other bloke. There are programs that can extract key numbers but I think that is only for installed systems and not from the CD - try these links anyway
As for exiting - have you tried ctrl+alt+del or pressing the reset button - if you have to turn the power off use the front power switch - as opposed to pulling the power chord out.
A friend asked me to reformat her hard drive and reinstall Windows XP Pro. She had a virus and tons of spyware and wanted to start over.
Problem: The XP CD she has is a burned copy - the kid that loaded it on her computer originally has gone to college and we can't get a hold of him.
The reformat/installation went fine till Setup asked for a Product Key.
The numbers he has written on the CD are a set of 5,3,7,5 - which don't match with the format asked for when the installation asks for a Product Key - which is 5 sets of 5 characters.
Any idea what he has given her? I wondered if he had bought a multiple license copy of XP and she had a legitimate copy - but the Product Key not working makes me wonder.
Would the best thing be to go out and buy another copy of XP?
Since I already started loading this burned copy - and it won't let me back out - do I have to cut the power to the machine to start over? Will this hurt the hard drive if I do?