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All of a sudden, the b/u of my OS drive more than doubles

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Posts: 9
Comments: 11

Hi all :)


TI2019 w/W7


The b/us that I make are typically in the 44GB range. Always on the same HDD. Just created a new b/u, and the size is 106GB, and instead of taking about 10 min to complete, it took over 30.

I haven't made any real changes since the last one was created; some text files, jpgs, and pdfs have been added, and some sw license auths, but that's about it.

Any idea where I can look?

Thanks in advance.


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Posts: 106
Comments: 26700

I can only suggest checking the logs for your backup to check if it has switched to using sector-by-sector mode of backup due to encountering any bad sectors on disk etc?

Download a copy of the MVP Assistant log viewer tool and use this to look at the logs to see if they show any issues during the operation process?

You need to be using the new log viewer tool per the link below. 
MVP Assistant update for Acronis Cyber Protect Home Office (Version

If you have Disks & Partitions backups created on ATI 2020 or later using .tibx files, then look in the Backup Worker logs.

If you have Files & Folders backups using .tib files (or Disk backups from earlier versions using .tib files) or using Cloning then look in the Demon logs.

Other logs are shown by the MVP Assistant under the 'Active Logs' heading of the Log Viewer page of the Assistant.

The log files should be zipped to preserve their original file names if sharing in the forums and would need to be less than 3MB in size, otherwise you would need to share the zip file via a Cloud share service such as OneDrive, Dropbox etc.