Specify which display to use and how to use it.

Options /internal Switch to use the primary display only. 1 All other connected displays will be disabled. /clone The primary display will be mirrored on a second screen. 2 /extend Expand the Desktop to a secondary display. 3 This allows one desktop to span multiple displays. (Default). /external Switch to the external display only (second screen). 4 The current main display will be disabled.

Running DisplaySwitch.exe without any options will open a GUI.
The command is located at: "%SystemRoot%\System32\DisplaySwitch.exe"


Mirror the current Desktop on a secondary display:

C:\> DisplaySwitch /clone

Extend the Desktop to a secondary display:

C:\> DisplaySwitch 3

"The mission of the press is to spread culture while destroying the attention span” ~ Karl Kraus

Related commands

MODE - Configure a system device COM/LPT/CON.

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