Trying to factory reset my iMac.

[Dawirt]

Firstly, hello and thank you for letting me post on your forum.
As stated, I'm trying to factory reset my iMac. I just want to delete everything and do a new install.
For the sake of saving my finger from doing a lot of typing I took screenshots of the steps I'v been taking.
The problem is with the email "dawirt@mail.ie" which is an old email that I don't even remember using with my iMac.
It could be something to do with iTunes???
Anyhow, the computer is set up using my current xxxxxx@gmail.com account but thats not helping.
Tried resetting the old email account password but I think that account is now blocked??

HELP!!

 

[Dawirt]

Not too sure if this is relevant?

 

[Fishrrman]

What happens if you put your email address into the box where required? (image in reply 2)

If that doesn't work...
What happens if you put your phone number in there, instead?

If neither work, then I'd suggest you either call Apple's support line, or make an appt and take it into a brick n mortar Apple Store genius bar and let them help you...

 

[Dawirt]

Image 2 goes into Image 2 and so on. I took a screenshot of each step exactly