Right-click the desktop and open Display settings
Find the Display orientation option
Select Landscape, Portrait, Landscape (flipped), or Portrait (flipped)
Click Apply
Confirm the change if prompted
On Windows, use Ctrl + Alt + Arrow keys if supported by your graphics driver
On macOS, open System Settings, go to Displays, and choose the rotation option if available
On Linux, open Display settings and change the rotation option for the monitor
On a laptop, check the graphics control panel if the display rotation option is not in system settings