If you bought a specific brand (e.g., "BrosTrend AC1L"), go to their support page. They often modify the driver for their specific USB VID/PID.
Before downloading anything, you must ensure you have the correct chipset. Manufacturers often change chipsets without changing the product name. realtek 8723du wireless lan 802.11n usb nic driver download
If the driver did not install automatically via Windows Update, follow these manual steps: (usually a .zip or .cab file). Open Device Manager : Right-click the Start button and select Device Manager . If you bought a specific brand (e