How do I turn my screen on the laptop?

I accidentally pressed any keys and now everything is shown standing on the page. Restart does not work. Now everything is turned 90 degrees to the left. Do you know how to turn the screen back?

So that's easy just hit ctrl + alt + down arrow key then this should be back to normal otherwise press ctrl + alt + arrow key right

You'll find out for yourself what you have to press there if that does not help you just restart your PC

With Windows 10 you can hold down Ctrl + Alt and turn the arrow keys on the screen (and undo it again ).

Ctrl + Alt + up arrow on the cursor keys