If you press Ctrl + Alt + ↑, this should correct the screen orientation. Pressing Ctrl + Alt + ↓ can flip your monitor upside-down. If you cannot see a rotation lock setting in the Action Center, unplug and reconnect the USB that attaches to your monitor, which should fix the issue. If not, double-check you haven’t enabled Rotation Lock by opening ‘Action Center.’
If yours does, then simply rotating your screen could fix the issue. Some devices have a built-in rotation sensor (tablets, 2-in-1 PCs, and certain desktops). 5 Ways to Fix a Rotated Screen on Windows While software engineers developed the rotation option to help people connect a second monitor, if you accidentally switch your main display - or a workmate plays a practical joke - you could end up with an upside-down or sideways screen.
For a colleague to rotate your computer screen when you step away from your desk.
