I used Windows XP 32 for about ten years, reformatting once every six months on average. Been using Windows 7 64 bit for over 5 years and have only reformatted once. However my system is running kind of sluggish recently and I think it's time for a clean flush. Which means it's gonna be a long night, and I really don't mind doing it. So I will probably be offline for a few hours and getting very drunk.