Upgraded my XP to SP2. Well doesn't seem to have any significant changes except the security features having a firewall and detects if you have antivius switched on. Other than that feels the same. But felt that my computer HD space is getting smaller and smaller haha. 10 gig just for the XP program is gonna run out! Left abt 400 MB left, and all are program applications!. My the other HD partitions are for Movies, animes, games and music. Getting mood swings again, so forgive me if I'm very cold to you.