Lot of Apple users reported this issue in Apple support community. When they try to create an iPhone, iPad and iPod touch backup with iTunes, they got these error messages.
Before doing anything, copy and paste old backups in new location on your Mac and Windows. Your backup files are here : iPhone backup File Location on Mac & Windows.
- iTunes could not backup the iPhone because an error occurred
- iTunes could not backup the iPhone because not enough free space available on this computer.
- iTunes could not backup the iPhone because the backup was corrupt or not compatible with the iPhone.
- iTunes could not backup the iPhone because a session could not be started (find solution below – last one)
- iTunes could not backup the iPhone because the iPhone disconnected
- iTunes could not back up the iPhone because the backup could not be saved on the computer
- Restart your Mac or PC and iOS device (iPad, iPhone and iPod Touch)
- Makesure you are using USB port directly on PC.
- Disable antivirus program and try to backup.
- Delete corrupted backups. Launch iTunes. Go to iTunes -> Preferences > Devices. Select the backup file and click the Delete Backup button.
- Install latest version of iTunes.
- Delete the Apps no longer used.
- Leave at least 5 GB space on primary drive. Because iOS backups requires at least 2 to 3 GB spaces.
- Clear temporary files with CCleaner like apps.
- Rename backup files.
1. If all solutions failed, go to the backup file location and delete the folder with the file name contain long name like 719sfs7sd2f5sdf25sd2sdf5.
2. Manually delete backup files from AppData/roaming/Apple Computer/MobileSync/backup. Copy entire photo directory from iPhone to desktop for backup. Remove all files from your iPhone. Now try to backup. This will fix the “Backup Cannot Be Saved on this Computer” error.
3. Go to the backup folder. Right click and choose properties. Set full control in security tab.
iTunes could not backup the iPhone because a session could not be started
Sol 1:- This problem might happened on your Mac, because WI-FI Sync Application installed on your MacBook pro.
Go to hard drive ->Library -> Application Support ->Wi-Fi Sync.
Erase the folder. Launch activity monitor and stop the process named “wifisync”.
Sol 2:- Turn off your home network and wireless router. So now iPhone would switch to cellular dat.
Press and hole shift & control key while clicking on the iTunes icon. It would start iTunes in safe mode.
Connect your iPhone via USB cable and try to sync.
If you not get any error, reactivate home network, wireless and WiFi sync.
Sol 3:- Un-check sync over WiFi option.
SEE ALSO : How to Fix: iTunes does not recognize iPhone, iPad or iPod Touch
If you have any other issues with iPhone backup, do let us via comment