Applies to:

Both Windows and Mac versions of Acronis True Image (any year edition).


1. You try to run backup or recovery task in Acronis True Image, either automatically by schedule, or manually.

2. The task fails with the error message "Read error or data content is corrupted":




After updating to macOS 10.15.4 backups fail with the following error:

The last backup has failed. Failed to enumerate directory 'Macintosh HD — Data:/private/var/db/lockdown/'. It may be corrupted or does not exist. Please check the disk for errors.


Catalina update 10.15.4 restricted access to folder /private/var/db/lockdown/ for security reasons.


1.  Backup to an archive of version 12 format fails with the following message:

The file is corrupted

2. You expand activity details and in the line "Failed to open archive" you see a file with .tibx extension, for example:
error 0x400355: Failed to open archive 'Acronisbackup.tibx'.


Activity (backup, validation, etc) fails with the following error:

Windows error: (0x80070570) The file or directory is corrupted and unreadable