I've been having a lot of issues lately- freezing, hanging up, blue screen, shutting down unexpectedly for no apparent reason, and so on. And every virus scan comes up clean, every optimizer program says my PC is optimized, registry clean, no defects found. I've had computer experts working on it remotely every day since the day before Christmas, and they finally gave up on it yesterday. They suggested I get a USB flash drive to save my pictures and documents and they were going to use the whatcha-ma-callit restore to put everything back like it was when it left the factory, totally clean everything, and reload windows. I thought since this PC was made in 2006 i'd probably be as well off to just get a new one. All I need is the tower part, and new ones have waaaay more memory than this one. Has anybody here ever done the system restore thing?