The Acer C120 is a portable USB projector that needs compatible display software to receive images from your computer. Its driver allows Windows to recognize the projector and send desktop content through the USB connection, making it useful for presentations, documents, and other on-screen material.

Key Features

• USB projection support: Enables communication between your PC and the Acer C120 so the projector can display content supplied over USB.
• Device recognition: Helps Windows identify the connected projector and load the software components required for operation.
• Desktop display integration: Works with the supplied projection utility to manage image output. Available display options depend on the driver version and operating system.
• Connection troubleshooting: Installing the appropriate package can help resolve problems caused by missing, damaged, or incompatible projector software.

How to Install

1. Check your Windows version. Identify whether your computer runs Windows 11, 10, 8, or 7, and confirm its system type in Windows settings. Verify that the download explicitly supports your configuration; an older Acer C120 package may not work on newer Windows releases.
2. Download the correct package. Choose the driver or projection software intended specifically for the Acer C120. Review any included compatibility information and installation instructions before proceeding.
3. Prepare the projector and computer. Close unnecessary applications and remove any conflicting or unsuccessful installation of the same software if instructed. Keep the projector disconnected until the installer or package instructions tell you to connect it.
4. Install the software. Extract the downloaded archive if needed, run the setup program, and approve the Windows permission prompt. Follow the on-screen instructions, including any request to restart your PC.
5. Connect and test. Attach the Acer C120 directly to a suitable USB port using the recommended cable arrangement. Open the installed projection utility, if provided, and check that your desktop appears.

If the projector remains undetected, check its power and USB connections, try another suitable port, and review Device Manager for errors. Confirm driver compatibility before attempting another installation, especially on Windows 10 or Windows 11.

Common Issues and Fixes

• Install fails or rolls back: Disconnect the Acer C120 projector, uninstall any previous USB display/DisplayLink driver, reboot, then run the Acer package as administrator. Reconnect the projector only when the installer prompts.
• Projector not detected: Connect the C120 directly to a USB port—not a hub—and confirm it is in USB Display mode, not HDMI. Try another USB 2.0 port and check Device Manager for an unknown device.
• Version conflicts or no signal after updates: Windows Update may replace the Acer driver with a generic USB display driver. Roll back in Device Manager, remove duplicate entries, reboot, then reinstall the Acer C120 driver.