Windows can rotate your screen without any extra software. This is especially useful if you have a desktop monitor that rotates. Many PCs have hotkeys that can rotate your screen, too, and these are easy to accidentally press.
How to Rotate Your Screen on Windows 10
To rotate your screen on Windows 10, right-click your desktop, and then select the “Display Settings” command.
On Windows 10, you’ll be taken to the Settings > System > Display window.
Locate the Orientation option under Resolution, click the dropdown menu under it, and then choose your preferred screen orientation—Landscape, Portrait, Landscape (flipped), or Portrait (flipped.)
How to Rotate Your Screen With Hotkeys
Some PCs have hotkeys that quickly rotate the screen when pressed. These are provided by the Intel graphics drivers, and are only enabled on some PCs. If your PC’s display suddenly rotated while you were pressing something on the keyboard, you probably triggered the hotkey accidentally.
To rotate your screen with hotkeys, press Ctrl+Alt+Arrow.
For example, Ctrl+Alt+Up Arrow returns your screen to its normal upright rotation, Ctrl+Alt+Right Arrow rotates your screen 90 degrees, Ctrl+Alt+Down Arrow flips it upside down (180 degrees), and Ctrl+Alt+Left Arrow rotates it 270 degrees.