How to delete ALL data and restore to factory settings?

entatlrg

macrumors 68040
Original poster
Mar 2, 2009
3,376
3
Waterloo & Georgian Bay, Canada
I've tried the cmd R and erased but after the reinstall the files are still there.

I've searched here and on the Apple forums and can't find a solution.

The first problem I have and the reason i want to reinstall Lion is I have only about 70gb of data on a 256 ssd, but it shows it has 230gb of data used.

It shows something called 'other' is occupying 160gb of space, I have no idea what 'other' is, not a time machine back up or anything.

I tried reinstalling Lion but all data/apps werent deleted ... I want to delete ALL the files and reinstall Lion.

Thanks
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
30,171
9,840
California
Thanks, but I can't find a way to do that.
Once you get to the beginning install screen look under the Utilities menu for Disk Utility and use that to reformat.

Make sure you have a backup because this will wipe the OS and all your apps and data.
 
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