I guess I missed the real question with my previous post. It should work=20 to change the motherboard, just be sure the new one is set up for the=20 same HSS/Optical drives interface, either IDE or Sata. These SATA=20 motherboards many times don't have any or maybe 1 IDE port. Also ensure=20 the appropriate number of slots (PCI, PCI-E (16)) and other connectors=20 (Serial, Parallel, etc.) are available. For most of those you can get=20 USB convertors, but that's more hassle again. Probably good idea to load=20 new board drivers before doing the switch. Unless going for more memory=20 or faster CPU (significantly more), though, my other message of figuring=20 out why it is slow should be first. If it ran fast enough to begin with=20 and if there is no new software that is a hog of resources, I would tend=20 to stick with the old. On 1/30/13 2:32 AM, Luis Moreira wrote: > Hi Guys, > My main PC at home, which is about four years old and running windows 7, = is > slowly developing faults as time goes by and I think it is time to get a > new motherboard for it. > My question is, if I fit a new mother board with probably new processor a= nd > memory do I have to do a clean installation of windows7. I really don't > want to do that... > Thanks. > Best Regards > Luis --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .