how do i do a clean install of Leopard - and should I?


macrumors 65816
Original poster
Jan 17, 2006
New York City

I just ordered Leopard for my iMac G5. Is it worth it to do a clean install?

If so, how do I go about that? Do I risk losing my files? What does it entail, and why is it better than just upgrading from Tiger?

Thanks so much! :)


macrumors Core
Apr 1, 2005
Space--The ONLY Frontier
Doing a clean install is MY recommended way.You will lose all data because a clean install erases the hard drive.

Back up all your data.But do NOT back up any preferences or system type files.Just your photos,documents etc.


macrumors 604
Apr 6, 2007
Unless you have some other reason for wiping your HD clean with a new install of Leopard, there should be no reason for it. I did upgrades from Jaguar and Tiger on a few machines from a family pack license, and all of them were upgrades that went smoothly.

The only annoying bit was that my printers were lost and I had to re-add them.


macrumors 601
Jun 1, 2007
Chicago, IL, USA
Clean install lets you start off from square one. Everything runs as if the computer was brand new. Back up everything because the hard drive will be totally erased during installation.

When going through the pre-installation windows for 10.5, click the options button when you get to the right window (sorry, but I don't remember the order of them) and choose "Erase and Install." Then you will get a clean version of OS X on your computer. Keep in mind that you will need to reinstall all other programs (including iLife).


macrumors 65816
Jul 7, 2005
There is an options button somewhere in the bottom left when you are being guided through installation setup. You can choose upgrade/archive/clean. I just did archive though.
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