Windows 10. Before considering troubleshooting options, make sure your device is up to date. Select Start > Settings > Update & Security > Windows Update , then select Check for updates. If you need help setting up your external monitors, see How to use multiple monitors in Windows 10.

Wirelessly connect your PC to a TV, projector, another PC, or other kind of external display that supports Miracast. Turn on your TV or projector. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display. On your PC, make sure Wi-Fi is turned on. On right side of the taskbar, select the Network icon > Cast > pick ...

Move the Oemn.inf and Oemn.pnf files back to the %Systemroot%\Inf folder. Use Device Manager to remove the VGA video adapter, and then restart the computer. Windows Plug and Play locates the OEM video adapter and reinstalls the OEM drivers automatically.

Solution 1: Install the latest updates. Solution 2: Check your HDMI and USB connections. Solution 3: Update the adapter’s firmware. Solution 4: Restart the adapter. Solution 5: Reset the adapter. Solution 6: Remove the adapter and reconnect. Solution 7: Allow the adapter to communicate through Windows Firewall.

Restart your PC and the wireless display. Remove the wireless display, and then reconnect it. To remove the device, open Settings, and then select Bluetooth & devices > Devices. Under Wireless displays & docks, select More options (three vertical dots) next to the wireless display, or adapter you want to remove, then select Remove device > Yes.

The Microsoft Basic Display Adapter is software that's built into Windows that provides display and graphics capabilities when software from your hardware manufacturer isn't installed. To get the best experience from your device, you might need to install software known as a driver from your hardware manufacturer.

Open display settings. Get the steps for setting up dual monitors on your Windows PC.

Reinstall the device driver. In the search box on the taskbar, enter device manager, then select Device Manager. Right-click (or press and hold) the name of the device, and then select Uninstall. Restart your PC. Windows will attempt to reinstall the driver. More help.

Windows 10. In the search box on the taskbar, type device manager, then select Device Manager from the menu. Open Device Manager.

Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions. Get steps for how to change screen brightness in Windows.