I've swapped out motherboards before and not had to reinstall windows..in fact I've done it several times. All that needed changing was drivers. Whats the worst that will happen?
it will crash or BSOD. Best to format & reinstall.
i am changing my motherboard, ram and cpu. These are different to my old set up, will I be able to drop my old hard drive from my old set up which had windows 7 on or will I need to format it?
i know that there are a lot of features but is there really a difference in speed, is it worth paying extra ??