Cannot assign a drive letter to a partition from the backup archive - True Image 2021
I am having this problem which seems to render my backups useless.
The backup of a complete drive has been successfully validated.
When I try to mount a backup, it produces the error message in the title. There is no other action I can take except clicking the ok button in the corner. The attempted mount is not recorded by Windows 10 (21H2) as a disk without a drive letter, so I can't manually assign one.
Finally, clicking right and attempting to traverse the file system on the backup yields "This folder is empty" even on the root.
And finally also, I first encountered this problem 2 weeks after my support ran out!
I've used True Image for nearly 10 years but if I don't get a solution shortly I will need to change to another backup solution.


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I have a backup which is a disk image.
I am clicking right on the shell extension in Windows Explorer which has two options: Mount and Validate.
Clicking the Mount option and following the dialogue produces this error.
When I click on the backup image in Explorer, it tells me that the filesystem root is empty.
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Clicking right on the Acronis shell extension in Windows Explorer produces the problem.
Opening the backup in explorer produces a backup with an empty root folder.
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Steve Smith wrote:>Ben, welcome to these public User Forums.
Thanks.
>What type of backup image are you wanting to mount here? Only a Disks & Partitions backup can be mounted - a Files & Folders backup will always give this error as does not contain a partition!
Trying to use the Windows Shell Extension. Theres an ATI item with Mount and Validate options. The Mount option is where I encountered the problem
> Are you able to double-click on the backup image and open it in Explorer to navigate through the contents?
No, it presents as empty.
>Note: ATI requires to be run using Administrator to work correctly.
So none of these operations directly use the ATI UI. ATI is installed as administrator IIRC. Is there a way of checking whether this is the problem?
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Ben, please try doing a Repair Install of ATI 2021 using the latest new build released recently.
KB 60915: Acronis True Image: repairing program settings - has details.
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