If there are both ShadowProtect and Acronis Backup & Recovery 10 Agent for Windows installed on the same machine and you back up with VSS enabled, the incremental and differential backups will be of the same size as the full ones

When booted from WinPE-based Acronis Bootable Media Acronis Backup & Recovery 10 always creates full backup archive instead of incremental or differential

Trying to append an incremental or differential backup in Windows/Linux to the one created from Acronis Bootable Media will produce a full backup. The same is true for a vice versa operation

By deleting the ".meta" folder you remove the meta information about the backup

Acronis True Image Echo has the capability to consolidate backup files (create a consistent copy of archive while deleting selected backups)

Replace the StructuredBackup.dll library with the one that has the fix to solve the issue

Avoid mounting in read/write mode several partitions from one backup archive at the same time in Linux. Also avoid mounting one partition to several directories at the same time in Linux. This will corrupt the incremental slices

Keep a copy of your backup archive in the virtual machine format ready for instant recovery

Create a new backup plan to create backup of different type

An incremental backup created after a previous backup in the chain has been edited in the read/write mode will not have the changes of the edited backup

The issue has been fixed, please upgrade to Acronis Backup 11.5 (Acronis Backup & Recovery 11.5). This an issue with filtering information when browsing. On restore, the correct files are recovered

Acronis Backup & Recovery 11.5 and Recovery for Microsoft Exchange cannot create an incremental backup of an Information Store or Storage Group in Circular Logging mode


Acronis True Image 2020 introduced a new backup format - .tibx, which is even more reliable and convenient. The .tibx format is used for disk backups created to internal drives, external drives, network storage. 

One of the main changes in this new backup format is that the .tibx format saves full and differential backup versions as separate files, while incremental backup versions are automatically merged into their base full backups.


In what way full, differential and incremental backups differ from each other

This article applies only to archives in TIB format
If you have questions about the new tibx archives in Acronis True Image, see Acronis True Image 2020: new tibx backup format FAQ

Incremental convert to virtual machine recovers only changes that were backed up since the last machine update: Acronis Backup and Recovery 11 updates the virtual machine instead of recreating it. This can be used during automated conversion of an incremental or differential backup to a virtual machine on a virtualization server.

This functionality is available for the following virtualization platforms:


If you want to run your backups manually and have the ability to choose what type of backup to create when the task is run, you can select the necessary backup scheme and switch off scheduling.


Follow the steps below to set up a custom backup scheme, including differential and/or incremental backups:

Incremental or differential backups are larger when performed after disk defragmentation or full restore


  1. You have set up a Disks backup. The initial backup (and the following incremental backups, if any) worked correctly
  2. You install an upgrade to macOS.
  3. When you try to run an incremental backup after macOS upgrade, the operation fails with:

    The last backup has failed. No current partition


macOS upgrade changed the unique volume identifier for the source disk, while the backup task configuration still refers to the old volume identifier.