I followed your advice and what i got on screen was line after line of THE DISK DOES NOT HAVE ENOUGH SPACE TO REPLACE BAD CLUSTERS DETECTED IN FILE,there is about three more words it says but it's going that fast i can't read it.
Looked like it would keep doing this so i turned the machine off.
Should i have left it running?
Even though it says i don't have enough space surely 15gig IS enough?
Right-click the drive you want to check,whilst IN windows,then choose Properties,then click the top Tools tab,then the Check Now button,then tick the two boxes and restart your PC.It will perform the checks and fix any errors before it boots back into XP.