ACRONIS PARTITIONEXPERT 2003 User Manual page 36

If you do not select a partition to be partly used as the copy location
on the Select Partitions wizard page and there is no (or not enough)
unallocated disk space, you will see an error message:
Error message showing not enough disk space for a partition copy
In this case the wizard will prompt you to select a partition to take
some space from.
If there is not enough space, a partition will not be copied!
5. On the next Partition Size wizard page you can provide a desired parti-
tion size. The wizard will automatically determine the minimal and
maximum copy size.
The page for partition copy size selection
The minimal copy size is determined by the data area size of a copied parti-
tion. The maximum size is determined by the available disk space. It includes
the space taken from a partition and unallocated disk space.
36 Chapter 3 : Automatic Partition Operations