Please only answer who really knows.
Hello, I just played a bit on the laptop.
Suddenly the whole screen turned blue and in the middle stood "lock"
He drove off by himself and if I want to make this
If the light flashes, but he makes no more sound.
I have ten windows
What can I do now?
Was my laptop possibly hacked?
Start in safe mode or try it?
He does not start anymore.
Hmm, then sounds very much that the screen / graphics card is defective… Hacking has nothing to do.
Due to the word lock, I assume that your parents have set a usage limit on the notebook. Windows offers this feature. I can't tell you how deep that is.
Your parents have probably installed a time-limited child lock.