I did a fresh clean installion from a DVD Drive and the MSATA is the only drive connected, and when I boot up the laptop simply cannot find a bootable drive. I googled the problem and I traced it to the above reference: UEFI Hard Disk Drive BBS Priorities.

The laptop is a HP Elitebook 8570w and if anyone can tell me how to get to advanced BIOS inorder to change BOOT DRIVE ORDER I will be very grateful.