This is no big deal really providing you want to take the time to reinstall or download stuff. You have to have install discs or executable files for programs you plan to reinstall after the reformat. For instance if you do not have AH.exe saved somewhere your gonna have to redownload it. All I ever do is burn my Word,Excel,Powerpoint saved files, my MP3's, pictures etc to a CD. Upon reformat I install XP update all critical updates from windowsupdate.com ,MSOffice,my games,mp3's,pictures etc. Yes its a time consuming process but I only have 1 HD and I hate partitions. I reformat every 2-3 months b/c as any power user knows a computer will start to slow down around this time...corrupted files etc...it is amazing how fast a freshly formated/installed computer is in comparison to one that has been running for months on end.