After a couple of bad experiences losing data i decided to physically install a second drive and use it for MS office/data/programs/games/mp3's etc. On my C:drive i run only windows and other operating programs that are easily recoverable/reinstallable. i do this on the basis that (apart from performance and maintainance issues) i can now reformat C: and reinstall windows and keep the contents of the other drive.
Will the contents of this second drive be usable? will windows update the registry of the drives contents? e.g., MS office or a game can still be used after the clean installation of the OS.