Windows: Press Ctrl + Alt + Down Arrow
Windows: Press Ctrl + Alt + Up Arrow to restore
Windows: Right-click desktop and open Display settings
Windows: Find Display orientation
Windows: Select Portrait (flipped) or Landscape (flipped)
Windows: Click Apply
Mac: Open System Settings
Mac: Go to Displays
Mac: Hold Option and click Scaled if rotation options are hidden
Mac: Choose 180° rotation if available
Chromebook: Open Settings
Chromebook: Go to Device
Chromebook: Select Displays
Chromebook: Change orientation to 180 degrees if available
Linux: Open Display settings
Linux: Find Rotation
Linux: Select Upside Down or 180°
Linux: Apply the changes