F8 "Repair your computer" does not show in boot menu

After booting using Easy recovery (on usb) and running Automated Repair, when I boot using F8 the boot menu no longer has "Repair your computer".
I want to access this item as it has allowed me to run cmd prompt which I can then use to run backups using Robycopy.
How can I run cmd prompt?
I did try to use the same regular commands in Launch Command Line but it didn't recognize the commands.