KDT said:

The system reserve is 100 MB, I've used 35MB.
The actual drive has 99GB used and is a total of 465 free (Solid State Drive Samsung Evo)
Assuming you are using the free version default settings which should have "Intelligent Sector copy" selected in the Advanced options then if you select:
"Create an image of the partition(s) required to back and restore Windows"
from the opening selection options I would expect a system image of ~60GB. This assumes the default "Medium Compression".