1. Download the program “USBDeview” from following site http://www.nirsoft.net/utils/usb_devices_view.html 2. Install USBDeview 3. In the program window, click the tab “ProductID” to sort drivers installed in your PC. And select all ps2avrGB drivers (VenderID = 20a0, ProductID = 422d) ** Be careful not to delete other drivers   4. Click mouse right button and click  ‘Uninstall … Continue reading How to remove ps2avrGB keyboard driver clearly