I am using a Windows 10. Today I experienced something very bad. When I tried to boot up my pc..I got my lockscreen but when I make the gestures to open password prompt nothing is happening. The screen is blank (with my lockscreen wallpaper and wifi, ease of user access, shut down). I tried to solve this using safe mode but when I boot up into safe mode the same thing is happening. The password prompt is never arriving in any of the safe modes or normally. Please help me, I need my computer for school instantly.