Difference between System Backup and Disk Backup

I have read the AOMEI discussion and am still confused. My C drive has my windows files (boot partition of course) and my other program files. All my data etc is on D drive. Does a system backup of C include all data on the C drive including all my programs?  If that is the case what is the difference between a C drive disk backup and a C drive sytem backup?? (my C drive is a ssd drive). The discussion at the AOMEI implies that only windows boot and windows system files would be backedup with system backup whereas disk backup would back up everything on that drive (including boot partition?).  When i checked the size of the backup shown for the system backup of C drive it seems like it was backing up the entire drive including all my other miscel programs loaded.  


  • edited March 2018

    If you only have C: on your boot drive and D: is on another, then both will do the same thing. A DISK backup is for people that have one drive with multiple partitions on it... ie, C: and D: etc. then both will be backed up. Or for a second data drive without the OS on it.

    This is an FYI... I've made multiple test (and actual) restores from both a SYSTEM backup and a DISK backup for a drive with just one main partition (C:) on it.

    A SYSTEM backup will backup your System Reserved Partition, EFI partition (if you are using GPT) and C: partition (and all files and programs on it) but will NOT backup your System Recovery Partition. They say this is so you can expand the C: partition (on the right side) if the replacement drive is larger. You don't need this partition (if you have a Windows Boot CD or USB or the Windows install iso on a USB) and it's a good way to get rid of a factory installed recovery section which also would do you no good if your drive had failed.

    A DISK backup will restore ALL partitions on the disk but it has a glitch that will put a drive letter on your System Recovery partition (which you can remove in Disk Management). Support says they are aware of this glitch, but in the year I've been using the product, they have not fixed the problem. Maybe in the next version???? Giving it a drive letter will make it's contents visible in your File Explorer. 

  • What's the size of your system backup? A screenshot of Disk Management would be better.

  • Thanks Flyer, that answered my question

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