How to install TP-LINK wireless USB adapter TL-WN721N?
This guide walks you through installing the driver for the TP‑Link TL‑WN620G USB wireless adapter on Windows XP, Vista, and 7. Insert the adapter, run the TP‑Link resource CD, and follow the on‑screen wizard to complete driver installation.
After the driver is installed, the guide shows how to connect the adapter to a wireless router or access point, including using WPS/QSS or manually entering the network key, and how to save the network for automatic reconnection.