Startup Disk Confusion
I have a 2013 Macbook I’m trying to reset, but I’m stuck on this page. Does anyone know what to do from here? I’m just trying to factory reset to have a new user.
Earlier Mac models
The follow inks from Apple pertaining to this issue has important and useful info
What to do before you sell, give away, trade in, or recycle your Mac - Apple Support (CA)
Use Disk Utility to erase an Intel-based Mac - Apple Support (CA)
Excerpt from second link
If you don’t see Macintosh HD in Disk Utility
Your built-in startup disk should be the first item listed in the Disk Utility sidebar. It's named Macintosh HD, unless you changed its name. If you don't see it there, choose Apple menu > Shut Down, then unplug all nonessential devices from your Mac and try again.
If your disk still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your Mac might need service. If you need help, please contact Apple Support.