USB boot , Dell OptiPlex 760 USFF

I recently tryied to boot a USB memory stick in a new Dell OptiPlex 760 USFF, and I had to do the following to get it to work.

I downloaded a Dr. Dos 7.1 disk image, and installed it to a USB floppy.

Then I inserted the USB drive, and rebooted.

In Dos ( on the floppy ) I did a fdisk, selected the USB disk, and created a Primary Dos partition.

Then I rebooted and did a format C: /S

This allowed me to create a bootable USB drive, that works, and I can insert use it in a XP device also if needed

I then put the drive in my system, and copy the Windows CD of choice to the drive, and do a Dos Unattended windows Install. ( more on this as time permits. )