If your PC already has an active internet connection (via Ethernet, another Wi-Fi adapter, or mobile tethering), Windows Update can often find the driver automatically.
The Realtek 8723DU Wireless LAN 802.11n USB NIC is a popular wireless adapter used to provide internet connectivity to devices that lack built-in Wi-Fi capabilities. However, users may encounter difficulties when trying to install or update the driver for this adapter on Windows 11. In this article, we will discuss the steps to install and troubleshoot the Realtek 8723DU Wireless LAN 802.11n USB NIC driver on Windows 11. realtek 8723du wireless lan 80211n usb nic driver windows 11
Download the Windows 10 64-bit or Windows 11 driver package (Windows 10 64-bit drivers are structurally compatible with Windows 11). 4. Step-by-Step Installation Guide If your PC already has an active internet
If you cannot connect to the internet on the target PC, use this method. In this article, we will discuss the steps
If you downloaded a manual driver installer ( .exe ) or extracted a .cab / .zip folder, follow these steps to deploy it: Step 1: Open Device Manager Right-click the and select Device Manager . Alternatively, press and press M . Step 2: Locate the Network Adapter Expand the Network adapters category. Look for Realtek 8723DU Wireless LAN 802.11n USB NIC .
Do not run any Setup.exe files from the legacy driver—they often fail on Windows 11 due to blocked INF file installations. Instead:
Connect your PC to the internet (via Ethernet or an alternative Wi-Fi connection). Plug in the Realtek 8723DU USB adapter. Open ( ) > Windows Update . Click Check for updates . Go to Advanced options > Optional updates > Driver updates .