New to DELL Backup and Recovery Premium suite

Background

Soon after buying my 8500 XPS i7, became attracted to backing up and recovery software. I tried 'Paragon Hard Drive Manager  12 Suite' and purchased it online. After a week of hours a day, following the manual and able to store compressed files on an specially purchased  external hard drive. But still not able to recover, i admitted defeat and moved on to 'Acronis True Image'. This was  on 30 day trial. The GUI is great, but it would not work recover  with my new computer.

Is this how it works basically?

Then i came over a link within my Windows 8, about a 'DELL Backup and Recovery Premium' utility. Great. Still not tested it yet. But there is little in the way of instructions how to apply the software? So the other two backup software work as i am to describe. And i want to ask is this the gist of what is to occur?

  Prior to any windows 8 inability to start and is working OK a backup is made of the contents of the drive c:  Does  'DELL Backup and Restore Premium' operate  when Windows 8 is in some way damaged and cannot boot? And by changing - what used to be named the bios - to boot from optical media first,  and by using a previously made optical boot disk to then  take over. Then i apply this boot able disk  to recover and return  the previously copy of the windows 8 operating system stored  the external hard drive back onto the original hard drive C:?

By puzzlement, is this?

Which disk is the bootable disk? As i have made 'DELL 8500 XPS Recovery Media Factory Backup' disk, The external hard drive is where the copies of the operating system and data and applications is stored in my system. There is a copy on the external hard drive of some user interface as its stored with the compressed data file that previously would have been stored on a suitbale Flash drive.