My dog just came up with something and now the screen is somehow sideways or something and you know how to put it back. I've had Dueses problem before, but my dad was there and reversed it, how about that?
Ctrl + Alt + Right Arrow.
Ctrl + Alt + Down Arrow.
Ctrl + Alt + Left Arrow.
Ctrl + Alt + Up Arrow.
or else
Ctrl + arrow key
CTRL + ALT + arrow keys
CTRL + SHIFT + arrow key
CTRL + SHIFT + 9 (for 90 ° rotation)
AltGr and arrow keys.
If that does not work:
https://praxistipps.focus.de/windows-10-bildschirm-drehen-per-tastenkombination-so-gehts_104363
With Windows 7, this means a little different if you do this from the settings. Then you need to right click on the desktop and click on Screen Resolution
The fastest way to rotate your screen is to use a key combination: Hold down the [Ctrl] + [Alt] keys and change the orientation of your screen using the arrow keys [←], [↑], [⟶], [↓]