Quick & easy way to wipe a 2012 iMac clean
I am desiring to wipe my 2012 I-Mac "27"inch clean of my personal info, what's the easiest way?
[Re-Titled by Moderator]
iMac 27″, macOS 10.15
Follow Apple's instructions in the section called If you can’t use Erase All Content and Settings in the support document What to do before you sell, give away, trade in, or recycle your Mac.
'Erase all Content and Settings' refers to a process available to Macs with an operating system later than your 2012 iMac can support. The earlier method, relevant to your Mac, is described in the lower part of the document.