Downloading directly from the manufacturer ensures you get the exact software package intended for your hardware revision.
Open Device Manager, right-click the Ugreen adapter, and select Uninstall device . Check the box that says "Attempt to remove the driver for this device" if prompted. Unplug the adapter, plug it back in, and run the official Setup.exe installer again. Slow Speeds or Inability to See 5GHz Networks ugreen ac1300 usb wifi adapter driver updated