You do not need to alter the setup settings.  Simply connect the drive and press F12 a few times at powerup.  If the recovery drive is bootable, it will appear in the boot list.  Select it, press enter and the system will boot from the drive. If you have changed any of the settings (UEFI to Legacy/CSM, etc.) -- change them back to where they were originally before you perform the recovery.  
I’m trying to recover Windows 10 on XPS 8910 purchased 4/2017. Article 125230 says to disable Secure boot in UEFI menu. I did that. It says to select Boot List Option but option doesn’t exist on screen. Next in  The top of screen says Aptio Setup Utility. Perhaps the UEFI screens have changed in 5 years since I bought PC. How do I set up PC to boot from recovery drive?
XPS 8910, recover using recovery drive