If you downloaded the driver as a .zip or .rar file, extract it first. In Device Manager, choose Browse my computer for drivers , point to the folder where you extracted the files, and click Next . Troubleshooting Common Issues Wireless USB Adapter 11 RTL19OCT disc - Internet Archive
: Since the device uses the 8811AU chipset, you can often use generic 802.11ac drivers from the Realtek Official Download Center or laptop manufacturer support pages like Third-Party Repository : Sites like Driver Scape Wireless Usb Adapter Rtl19oct Driver Download