Offline image .iso

Hi Guys,

I created an windows 7 .iso using IEM and the .iso is working fine (tested on VM). But when I create a USB using the same .iso, it fails to even boot on the physical machine.

I created the .iso using Win2bootic tool and also using diskpart commandlines and copying the .iso content to the USB.

Thanks in advance.

Regards
Kanik Garg