my Windows 7 64-bit computer acted oddly (after it accidentally got unplugged while on, tho not sure that's what did it). now when i boot i get as far as the windows 7 logo starts to show, then i get that it can't boot. i changed nothing that i know of. repair says it can't. restore, which only lists points from 3 days ago, doesn't work. i did a memory test. it was fine. am i doomed to do a clean re-install of Windows 7? btw, if i get that Windows 7 logo, and also a stage where it says it is loading files, that means it is reading from my hard drive, right?