1 first go to the Apple website to download the latest version of itunes installed on the computer. Or directly Baidu search "itunes download." itunes is when your device is connected to your computer, the computer's hardware is driven, and only when the computer is installed itunes,iphone5c is connected to the computer.
2 If just connect the iphone5c to the computer, download and install itunes, as long as the data cable to connect iphone5c and computer. But the next thing you need to do with itunes is to do the following two points for iphone5c.
① open itunes and register the Apple ID. ( Related information: hands-on teaching you how to register the Apple itunes account)
② to the current computer licensing, only after the authorization to sync applications, music and so on. ( Related information:How does itunes authorize computers and revoke authorization?) )