You can press “Windows + P” to bring up a bar on the right side of your primary monitor. It will let you perform the following functions: • PC Screen Only • Duplicate • Extend • Second Screen Only Most users use the Extend function to double their screen space and improve productivity, but the other three screens have their uses in different scenarios. Sometimes, you only want one screen to work. Other situations require you to duplicate your main monitor’s contents onto the second one.