Erase and Install


macrumors regular
Original poster
May 19, 2002
Northallerton, England
I'm just doing an initialization (zero all data) on my iMac running Mac OS 9.2 (Disk Utilities application). It's taking a fair while. On Mac OS X you use Erase and Install which just takes a few seconds. Is the Mac OS X erase and install as effective? Does it do exactly the same job. Any thoughts?


Moderator emeritus
Oct 5, 2001
San Diego, CA
"Erase and Install" erases the data, and like you said, it's pretty quick. I doubt it goes as far as zeroing the drive, since the drive is immediately going to be written to, destroying the erased data anyway.

If there are any HD experts out there, please correct me if I'm wrong.


macrumors 65816
Jun 18, 2001
WestCost, USA
Drive Utils

You can boot off the OS X CD and go in to disk utilities... you can Zero out your drive there... it will talke a very long time (if your drive is big). Norton Speed Disk (part of Norton Utilities) will do it, Disk Warrior, and TechToolPro. I think Drive 10 will do it too.. but I have never done it my self with Drive 10.