Press the Menu button on the projector, open the Extended menu, select USB Type B, and then select USB Display to enable it.
Make sure the square end of the USB cable is securely connected to the projector's USB Port B, and the flat end of the USB cable is connected to the laptop/desktop Type B USB port. When the USB cable is connected, the projector is listed as a driver letter under "My Computer," as shown below:
If the following message appears, click Continue to remove an older version of the USB Display.
Click the Agree button.
The USB display screen should appear at the end of the driver installation. If not, click the Source Search button on the projector or the remote control to toggle to USB Display.