got an annoyance Black screen today.
Before this happen my notification not work...when I try to go to Notification setting it said sth like"App cant not start Explorer in use(sorry i forget it but it sth connect to administrative privilege and ask me to restart explorer)"

After a logo animation:
Totally black screen even in safe mode. After a short while cursor appear. But it disappear in some part of screen. (I think it Explorer problem) pls help me!