I have a Samsung Ativ Book 4 (model number: np470r5e-k01ub). When I turned on my laptop today, I was prompted the message "scanning and repairing drive c". This has been going on for longer than I expected (about 6 hours and is stuck at 9%) and I am starting to get worried that something is seriously wrong. I have tried rebooting into safe mode but my keyboard isn't working. I have no way (that I know of) to restore to factory settings seeing as how my keyboard isn't working. I am new to this kind of problem and have no idea what to do next. Anyone else ever had this problem or know how to fix it?