Even though XP's GUI is a little bit old than Windows 7 and Vista, Still it offers all the needs of computer users, It has improved stability and performance when Service Pack 3 was released. Onepiece offers post update pack and it really helps XP to be more reliable and improved it's overall Performance. Also, XP can be run on a less powerful PC than Vista. It only requires a minimum PC specs and that is why XP is mostly used by People. Windows 7 in the case, Microsoft had really improved it rather than Vista. All the problems, bugs, instability, compatibility problems in Windows Vista has been fixed in Windows 7. So I say, that Win 7 and XPSp3 is the best OS available from Microsoft right now.. :thumbsup_anim: :icon_cool: