Step 1. Install Wondershare MobileTrans on Windows computer
Download the free trial version of Wondershare MobileTrans on Windows computer. Install and run it. To let this software work properly, you should have iTunes installed on the Windows computer. In the primary window, go to Backup and Restore and click Backup to enter the Backup window.
Take out an Apple USB cable to connect your iPhone to the Windows computer. The Wondershare MobileTrans will detect and recognize your iPhone instantly and display it in the Backup window.