Delete System Images and Backups
Open Control Panel and navigate to Backup and Restore (Windows 7) applet. Click on Manage space.
The following Manage Windows Backup disk space setting will open. Here you can click on the View backups button.
This will allow you to view all your Data File backups, and delete the backups you do not need.
Next under System image, you may click on the Change settings button. Now when here, you will see the following options:
The 1st option is the default one. Select the former or 2nd option. This will delete your earlier system images and keep only the latest System Image, thereby resulting in saving of disk space. Now henceforth, only one, and that is the latest System Image will be saved. Hope you find this small tip useful. Now read: How to delete System Restore Points and Previous versions of files in Windows 10.