How to make your wireless Windows XP computer Wi-Fi Protected Access 2 (WPA2) capable?

NOTE: This only works if both the adapter and the router are both WPA2 capable.

1) Download and install this update for Windows XP.
For Windows XP English
For Windows XP Chinese Traditional

2) Setup the router and the adapter, the same way as WEP. In the router, use AES and PSK. In Windows XP, use WPA2-PSK.