Computer went bluescreen and blinking underscore

[ScaredBoi]

I'm honestly panicking, I was just watching some videos when my computer suddenly freezed, I waited for a long time until i got angry and smashed every keys, after a while a bluescreen saying something appeared and I restarted again, this time a black screen with blinking _ appeared.

 

My computer is an old prebuilt computer, one day it suddenly decides to remove my license for windows. So if you ask me to do some Windows 7 CD things then I really can't do anything.

 

Might have to wait tomorrow to bring it to a computer shop.