xp illegal operation error problems

[Brant259]

i have a xp pro a cracked ver i downloaded of kazaa...and ive had it for about 6 months now...ive never had any problems untill i recently formated...now in almost every program i am running i get a interal error or a illegal operation error..and the program shuts down..i cant play any games for longer than 5 minutes with out it freezing and shutting down..i think its because i have a cracked version...so does anyone know anything that might help me..i would really appreciate it

[desperado]

Follow the steps:

1. Uninstall all the games.
2. Backup your important files.
3. Format your hard disk by inserting the bootable windows  XP CD.
4. Format your hard disk.
5. Install your windows XP (make sure it is clean install)
6. Update your windows XP from www.microsoft.com