Hi, I have vostro 3750. I saw blue screen few times, but don't worry about it too much. And it happens again, blue screen, I shut down it and turn again, see windows starting but logo don't come. In bsod i saw fault like ntfs.sys, so maybe there is problem with hdd, or other hardware? How to boot windows and recovery important data? Maybe windows reintall helps, and what to do if not and bsod comes again?