Quick question on Network hookup with wireless USB

Quick question, When I get my new Wireless USB adapter, do I have to disable my WPA2 or will WD ask me for the password ?

After you put in your SSID (or if you tell it to scan for a broadcasted one) it will first ask you which type of encryption you’re using, and when you tell it WPA2 (probably AES, but check your wireless router), it’ll ask you for the password.