it doesnt matter if its a pirated version... a copy would work exactly the same as the originall, those problems that he's having would not apear. windows has no copy protection.(O, unless the person who copyed it is a totall tard, and burned it like a DATA cd, then yes of course it will not work) (no offence, but if u copyed it yourself given your noledge of pc's, then it may not work)
No- replacing a part of your computer will not solve the problem. all u need to do is enter BIOS and put CD-ROM as 1st in Boot order, then just run the XPcd select the options to reformat your drive and then folow the instructions...
the only time u need to go to DOS prompt and type ... format C: ...is if your using anything b4 winXP (ex-win98) if it is 98 just select the 'restart in msdos' at the start menues shutdown screen.
(note- i didnt read all the post in hear cause ima slow reader so it gets annoying, so i may have repeated something already posted, hopefully not)