ACRONIS TRUE IMAGE 6.0 User Manual page 33

If this archive file isn't protected with a password, selecting it you'll see the
previously created comment along with the list of stored partitions. If the file
is protected with a password, you'll see the comment only.
In the next window you'll be able to select one of the partition (disk) images
to connect as a temporary logical drive.
Selecting a partition and letter for a drive to be connected
A partition is selected by clicking the appropriate rectangle representing it. As
a result, the selected partition (rectangle) will become underlined red.
Another click will deselect the partition. You can select to connect several
partitions simultaneously. Each of them will be represented as a separate
logical drive with a letter assigned to it.
The same window will also allow to select a letter to assign to a drive to be
connected (Drive letter for the selected partition drop-down list).
If you want to change the letter assigned by default, you should select a
partition first by clicking it and then select a letter. (You can then select
another partition and letter if needed, etc.)
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