Does an Image restore Wipe hard drive first
The whole idea of restoring a drive image is that it completely replaces what was there before.
If you restore an image of C: drive partition to the present C: drive partition then the present data is gone and the C: drive partition is restored to the image contents.
If the image you restore is of the whole drive and all of it's partitions then the present data on all of the partitions is gone and the whole drive is restored to the partitions and data contained in the image.
It is best to become familiar with the Macrium free procedure before you start trying to restore anything. How-to restore with Macrium free click here