iTunes 1-Click

By default, music is purchased using 1-Click, which means the music you buy is immediately charged to the credit card listed on your Apple account and downloaded into your iTunes library. If you turn on "Buy using a Shopping Cart" and want to return to using 1-Click instead, open iTunes > Preferences (Windows — Edit > Preferences). Click the Store button at the top of the window and make sure "Buy and download using 1-Click" is selected. Then click OK.