Dell E2020H 20" 16:9 TN Monitor - Manual (Page 39)

Setting up the monitor │ 39
Removing the stand
NOTE: To prevent scratches on the screen when removing the stand,
ensure that the monitor is placed on a soft and clean surface.
NOTE: The following procedure is applicable for the stand that shipped
with your monitor.
To remove the stand:
E2420HS/E2720HS
1. a. Place the monitor on a soft cloth along the desk.
b. Unscrew thumbscrew at the tilt bracket fully.
2. Slide the stand out of the monitor completely.
3. Loosen the stand base thumbscrew fully to remove the base from the riser.