Also if i recall correctly with Windows it was much easier to make OS images (modifying straight from the master gold images), while RedHat and OpenSUSE merely

Also if i recall correctly with Windows it was much easier to make OS images (modifying straight from the master gold images), while RedHat and OpenSUSE merely came with a long list of configurations to perform on the PC in meeting the requirements in DoD 8500-2. Granted full deployment would probably change this, however to be used software gets checked out for 'networthiness', and unfortunately there isn't a lot of COTS software for linux. Switching from anything but Windows would be overly expensive - just isn't worth it as long as Windows maintains a good level of backward compatibility (unlike Apple).