A week or so ago, I picked up a win7 computer from a foreclosed house. After running multiple malwarebyres and TDSSKiller scans, everything seemed to work perfectly, and I had the comp set up...and was then told to bring back to other parent's house so could look through files. Once I brought it back, it's had this...weird problem. When I initially started, it would say "starting windows," and then it would turn discoloured (as if monitor broke) and stay there. I tried startup repair, but after "loading files" loadbar finishes, it just shows a blank black screen. I was able to get around that by starting safemode then restarting, and that worked...but today, even safemode does that "turns discoloured and freezes" thing like normal start yesterday. (I do not have a repair/install disc)