When my computer starts up it goes directly to a black screen with 2 options. 1st is recommended-launch statup repair(may not be worded right, and 2nd is start windows normally. Windows tries to start up normally, fails and returns to this screen. I have done the repair multiple times but it says nothing is wrong. It does say an external device may be causing the problem but nothing id connected. I have tried all the options. It will not go to a previous point. When I attempt to return to factory settings it says a program is trying to end in an unexpected way and will not prodeed. Help!!!!