If you erased the hard drive, then you have all your space back already and nothing further needs to be done. Don't forget that the Mac and formatting itself both "eat" a little of the space on a hard drive, so you never get 100% of the space advertised.
Hi, thanks chas_m, when I work out how to post a screen grab I will show you what I mean by the 5GB that Windows has taken. Also, when I open the the Start up Disk I see a network drive there as well, with a ? on it.
I wonder what that is about?
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