You might want to try downloading the latest version of the (free) VMware Converter directly, and installing the software onto the machine you want to virtualize.
Tried this also and this is the error I get when Trying to Run As Admin while logged in as a local Admin.
FAILED: Insufficient permissions to access the source.
Ok got this Solved Ended up having to virtualise it to itself (?!?! Never had to do that before but ok) then had to move this to the server with the VMware installed.