iPhone recovery: How to back up data on iOS device to an external hard drive?

As we all know that iTunes backup is stored in system drive on computer by default. The iTunes backup will take up at least several GB of memory space. If your C drive has limited free space, it will slow down the running and affect the your normal use. Therefore, you should remove the backup to other partition or move it to your external hard drive. And there are so many unexpected factors that could cause data loss on computer, such as computer crash, hard drive dead, virus attack. To secure your data, in addition to back up data to iCloud, you should also make more than one copies for iTunes backup.
How to find iTunes backup?
To remove your iTunes backup from hard drive, you should locate it on your computer.
Go to system drive, click Users>Administrator>AppData>Roaming>Apple Computer
>MobileSync>backup, you will find the iTunes backup folder, open it you will find many files in it. But you cannot directly read them. If you have emptied the iTunes backup on computer, you will find it is empty.
Location iTunes backup in iTunes: open iTunes, click Edit>Preferences, click Devices tab, select the device backup and right-click to find its location.
How to remove the iTunes backup to an external hard drive?
Connect your external hard drive with computer and make sure it has been detected by computer.
Go to the folder that save your iTunes backup and drag or copy it to your external hard drive. Then check it in your external hard drive.
With backup on external hard drive, you do not need to worry about data loss. Even if you lost the backup on computer’s hard drive.
With iTunes backup, you can choose to restore from backup in iTunes, or use the data recovery software to extract the data you need from backup. If you do not lost all data on iPhone, you should not restore the entire backup to iPhone.
Download H Data iPhone recovery software on computer.
Run this program and select the recovery mode: View and Restore from iTunes backup.
Choose the backup of your iPhone to scan. If you do not find the backup you need, you can click the button on software:Browse For iTunes Backups, to select the iTunes backup you need to scan by manual.
Click “SCAN” button to scan the iTunes backup you choose. Scanning from iTunes backup is soon but take several minutes.
After scan, you can preview all the contents that you have backed up.
Tick the contents that you want to recover and choose a location to store them.