Need help quickly. We purchased a Sony PC running windows 8. However, it locked me out after first shut down. My password, whihc I am absolutely sure was correct, was denied. Now we are not very, very tech savvy, but enough to set up our stuff, and have had computers since Atari. I returned the unit to Best Buy, and their Geeks are "systems restoring". When I g today, I need to make a choice between a the same unit, but new, or purchase an iMac. Husband primary user and needs Quicken. He does not like change. We do not game, nor do sophisticated projects. Suggestions, please.