Formatting my Macbook

[MrMoris]

Hey,

I have the latest Macbook Pro with the Retina.
I would like to format my Macbook Pro and to have it as I just received it. How can I do it? I tried inserting the OSX Sierra installation I have on my USB and it displays an X sign when I try to boot it. What can I do?


Thanks!

 

[Cergman]

Restart the mac, and hold command r immediately after you hear the boot chime. Then you can reinstall from there without needing the USB.

What utility did you use to create the USB?

 

[treekram]

If you have the 2017 MBP, a standard 10.12.5 installer won't work. You would need to use the Internet Recovery install (as mentioned by Cergman) or you need to do a new download (10.12.6 was just released yesterday - I'm presuming they now have the new hardware drivers in 10.12.6). The new MBP's had a custom install of 10.12.5 since it was introduced after 10.12.5 was released.

If you're looking to go back to a fresh install of the custom 10.12.5 version, unless you have a backup copy taken right after you got your MBP, I think that will be difficult to do.