Press Ctrl + Alt + Up Arrow to return the screen to normal
Press Ctrl + Alt + Down Arrow to flip the screen upside down
Press Ctrl + Alt + Left Arrow to rotate the screen left
Press Ctrl + Alt + Right Arrow to rotate the screen right
Right-click the desktop and select Display settings
Under Display orientation, choose Landscape, Portrait, Landscape (flipped), or Portrait (flipped)
Click Apply
Confirm the change if prompted