Laptop is crazy?

My laptop is crazy right now. The font size has been changed and a new window opens with every little thing in the browser… What should I do now?

Throw it away and buy a new one

Let it start again - because due to such a "vague" statement, the error can't be narrowed down.

Have already made a restart

You just make the font size smaller again and with the browser I don't know what you mean. Is it possible that you are holding down the Ctrl key?

So not necessarily physically but with software maybe or it depends or something. Press all the Ctrl keys that you have. If that doesn't work, pull the keyboard out and put it back in. If that doesn't work, try restarting, which almost always helps.

If that doesn't work either, uninstall all USB drivers and restart. If the mouse and keyboard do not work, you can open the cmd beforehand and enter the following there:

shutdown -r -t 600

Then you have 10 minutes to uninstall. If you have a slow computer it takes 1200s or so instead of 600 seconds. Then you have 20min.