Acronis Backup Size Question
This is just a general question I have.
Why is the backup of my system so large? My entire C drive is 1.81TB and after I install all my applications and adjust settings I’m left with 1.69TB free.
I made system backup to my external USB drive and the backup is 1.37TB, why is it so large?
Should it not just back up the space I’ve used?
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In reply to Sheldon, sorry but we will… by truwrikodrorow…

Thanks for getting back to me on this matter.
I did the same procedure in this video to backup my entire PC.
https://www.youtube.com/watch?v=ROtiTFZp-KY
I do however have two other internal drives in my PC but i'll get the log files once I get home from work.
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I went into Option/Advanced before I tried another backup and "Back up unallocated space" was checked, I unchecked it so it's grey, now my back up is much smaller 79.3GB. This should be the default settings,
Thanks for your help
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To my understanding, Backup unallocated space is defaulted to being deselected - I have never seen this on for any of my backup tasks.
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