After upgrading from previous versions to 2.1.1x18 or v3.0x10, a Mac user mounts a volume using a NT domain account:
a) Some (or all) folder/files within the volume are not visible, even though the user has permissions in NT
b) User is unable to write or delete inside a folder where they have NT permissions


TimeCapsule is not detected automatically under Acronis Bootable media


How to mount TimeCapsule as a network AFP share:


During backup of your Mac, you see the following error in logs:

Request failed. Parallels Desktop is not installed. 


As Acronis True Image for Mac has a possibility to back up Parallels Desktop virtual machines, during the disk level backups it sends to the system a request to check whether Parallels Desktop is installed. 

Does Files Connect support macOS 10.13 High Sierra?

Yes, Acronis Files Connect (formerly Acronis Access Connect) is fully compatible with macOS 10.13 High Sierra, as well as earlier versions of Apple's macOS / OS X operating systems.

Does Acronis Files Connect work with HFS+ and APFS disks?

Yes, it works fine with either disk format.

What's the difference between AFP and APFS?

They're very different but easy to confuse because of the similarity of the names and abbreviations.

MassTransit runs and currently ships without a dongle, but for those customers running older (5.x and later) versions of MassTransit, the option is available as well. In order to convert your dongled MassTransit server to a dongle-less version you will need to obtain a dongle config file from Acronis.  If you are interested, please contact us at or and your rep will get in touch with you to begin the process.


Acronis occasionally needs information about your MassTransit dongle in order to perform upgrades or sidegrades.

An application called "DisplayDongleInfo" is used to collect the information from the dongle and save it to a text file. We then ask you to send that text file to Acronis in order to complete your upgrade/sidegrade.


To Collect Dongle Information:

The most common reason for this is an unoptimized file system. Please open a technical support case at


Mac OS X Client Symptoms:

  • Slow browsing on a specific Volume or folder
  • Finder may hang on a specific Volume or folder
  • Mac OS may hang on a specific Volume or folder

Server Symptoms:


A backup on a Mac fails with:

Nothing to back up.


The software cannot find the files selected for backup and cannot back them up. Possible reasons:

1) files you have selected for a backup have been deleted or moved; 

2) files selected for a backup are on an external/removable drive which is not connected;

3) files selected for a backup are on a network share and this share is unaccessible

To install Acronis True Image on your computer, download the installation file from your account or from the purchase confirmation e-mail.


To use Acronis True Image on a Windows computer or a Mac, you need to activate it via the Internet. Without activation the fully functional product works for 30 days. If you do not activate it during that period, all the program functions become unavailable except the recovery.

You can activate Acronis True Image either on your computer or from another computer, if your computer is not connected to the Internet.


Acronis Disk Director (any version and edition) is not supported on Mac computers.

This includes:

  1. Installing and using Acronis Disk Director on macOS (any version)
  2. Installing and using Acronis Disk Director on BootCamp Windows
  3. Installing and using Acronis Disk Director on Parallels Windows or any other virtual machine on Mac computer
  4. Running Acronis Disk Director from a bootable media on Mac and any virtual machine on it



  1. Your Mac is running macOS Mojave (10.14)
  2. Backups fail with the following error:

     Failed to enumerate directory 'Macintosh HD:/Library/Application Support/'. It may be corrupted or does not exist.


    You receive the following message:

    Grant full disk access to Acronis True Image



Acronis True Image 2019 is currently installed on a Mac.

You launch the program and it detects that a newer version of the software is available.

When you try to download and install it, an error occurs: "For security reasons, updates that downgrade versions of the application are not allowed".


Known issue with the live update.

You can create a rescue bootable media - a standalone version of Acronis True Image that you can use to boot a crashed machine or a machine without any operating system and restore an image of your system. Follow these instructions to create a bootable media.



Backing up the entire machine is the most complete way to protect your data. We recommend that you choose this option when you are not sure which data that you need to protect. When you select Entire PC as a backup type, Acronis True Image backs up all your internal hard drives in disk mode. The backup contains the operating system, installed programs, system settings, and all your personal data including your photos, music, and documents.


You attempt to clone a disk with APFS (Apple File System). Cloning fails with the following error:

An error occured while cloning the disk. Cannot get the APFS contents

Fix the errors on Bootcamp partition


  1. You try to clone a Mac disk with a Bootcamp partition.
  2. Cloning fails with one the following errors:

    MFT bitmap corrupted

    A format/resize error

What exactly happens when the problem arises.

1. You attempt to clone a disk on your Mac using a Fusion drive as a destination

2. Cloning fails with the following message:

Neither Core Storage nor APFS containers were found on the source disk


1. Backup to Acronis Cloud using Acronis True Image fails. The present instructions apply only if the backup goes to Acronis Cloud. If the backup is saved elsewhere (NAS, external USB disk, internal disk, FTP server etc), use KB49502 instead.

2. When you click on the red X or || icon to see details, the message contains one of the following:

Change the primary language of your Mac


Using Acronis True Image 2019 and 2020 you can duplicate all your data and make macOS bootable on your new hard drive via Disk Cloning. You can use this to migrate to a new Mac computer or to clone the system to an external HDD and have a bootable copy of the system.

Keep in mind the following limitations:


If your Mac includes the Apple T2 chip then you need to modify Secure Boot settings in order to boot from Acronis Bootable Rescue Media and/or Acronis Survival Kit.


Secure Boot settings are available in Startup Security Utility:


Acronis True Image logs are used to troubleshoot and resolve technical issues with the software. When standard logs are not enough, additional debug logging mode could be enabled to capture more details about the issue, understand what happens and find a solution.

Acronis True Image 2020

Acronis True Image 2020 supports Mojave (10.14).

Acronis True Image 2019

Acronis True Image 2019 supports Mojave (10.14) starting with Update 1 (Build 14170). You can download the latest build of the product from your Acronis Account: see this article for instructions.

Acronis True Image 2018

Acronis True Image has been tested and is guaranteed to work with just one virtual machine format: Parallels Desktop 14. It is supported by Mac version of Acronis True Image 2019 and 2020.

Backup and recovery of Parallels Desktop 14 virtual machines

One of the unique features of Acronis True Image 2019 and 2020 for Mac is its unrivaled support of Parallels Desktop 14 virtual machines backup, as part of disk backup on a Mac host:

Acronis True Image 2020

Acronis True Image 2020 for Mac supports Parallels Desktop 9 and later.

Acronis True Image 2020 for Mac supports Parallels Desktop virtual machines configured to use the Boot Camp partition with these limitations. Virtual machines created by Parallels Desktop 14 will boot after recovery, for virtual machines created by earlier versions you need to run a special script to restore bootability.