When I hold the option key and go into disk utility, it shows that my 'Macintosh HD' drive is grayed out. I click erase.... should I still select 'Mac OS extended (journaled) or do I select APFS. It currently shows 'unknown' where my iMac showed Mac OS extended (journaled).
Confused on this part..... don't want to do the wrong thing.
Confused on this part..... don't want to do the wrong thing.