Acronis Disk Director 12 - Restart required

I put a 4tb drive in an USB 3.0 docking station to clean it off, remove all the partitions.

I really don't understand why it wants to restart my computer?

It's an Apple HFS volume I think or what ever they use.

The primary partition is an EFI system partition that says FAT32.

Operation 1 of 2 Obtaining information on the machine...

Operation 2 of 2 Deleting volume

I also just noticed it says the size is 10.91 TB ????

Disk Director 12 (build 12.0.3223)

Seagate ST4000DM000

Jeffery