Check whether your monitor stand supports rotation or pivot
If it does, loosen the stand lock if needed
Rotate the monitor 180 degrees vertically
Reposition the stand so the screen is stable
If using a wall mount, adjust the mount to allow inversion
On Windows, open Display settings and set orientation to Portrait or Portrait flipped if needed
On macOS, open Displays settings and select the appropriate rotation option if available
On Linux, use your display settings or xrandr to rotate the screen
Confirm the monitor is secure before letting go
Reconnect any cables if the new position affects them
Test the display to make sure it is showing correctly