46155: Acronis Backup: Troubleshooting Disk/Partition Backup Failures

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Last update: 29-04-2021

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Instructions on how to troubleshoot and resolve issues with disk/partition backup failures


Backup of drives or partitions may fail due to a variety of reasons, but not all reasons are specific to this type of backup. Generally the problem can be treated as a partition backup failure only when you also tried to run a file backup

  • of the same source (e.g. backup of the whole C: partition)
  • to the same destination (e.g. to a network share)
  • with the same backup settings (VSS settings, etc.)

and in the result the file level backup worked. In this case proceed as described in the solution section.

Otherwise it's a general backup failure. In this case please check articles listed in the More information section.


Follow step-by-step instructions below to troubleshoot the issue.

If the steps above have been executed and the issue still persists, collect following information and contact Acronis Support.

More information

There are several reasons for both disk-level and file-level backup failures. Here are solutions for these issues.