How return to Snow Leopard from Yosemite?

This is what you must do to downgrade to Snow Leopard.

Clean Install of Snow Leopard

Be sure to make a backup first because the following procedure will erase

the drive and everything on it.

1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came

with your computer. Insert the disc into the optical drive and restart the computer.

After the chime press and hold down the "C" key. Release the key when you see

a small spinning gear appear below the dark gray Apple logo.

2. After the installer loads select your language and click on the Continue

button. When the menu bar appears select Disk Utility from the Utilities menu.

After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive

size.) Click on the Partition tab in the DU main window. Set the number of

partitions to one (1) from the Partitions drop down menu, click on Options button

and select GUID, click on OK, then set the format type to MacOS Extended

(Journaled, if supported), then click on the Apply button.

3. When the formatting has completed quit DU and return to the installer. Proceed

with the OS X installation and follow the directions included with the installer.

4. When the installation has completed your computer will Restart into the Setup

Assistant. After you finish Setup Assistant will complete the installation after which

you will be running a fresh install of OS X. You can now begin the update process

by opening Software Update and installing all recommended updates to bring your

installation current.

Download and install Mac OS X 10.6.8 Update Combo v1.1.

TThanks for great instructions. I was able to delete Yosemite and reinstall SL fr.o.m. Dvd that came with computer, however not able to reinstall second disc with application bundle?

What happened when you tried?

I Received an unexpected error. I will try again and let you exactly what it Says.

IIt says Tha installation failed.An unknown installation error ocurred. The installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.

ALso, I don't have iPhoto anylonger and I can't get iTunes to work properly?

Downgrading iTunes is a real pig. If your iTunes Library is from a later iTunes it won't let you downgrade without a ton of 'behind the scenes' manipulation, only recommended for experts. If you're happy with the iTunes that created your iTunes Library, you can always download it free from Apple's website - Support/Downloads.

If you have had iPhoto before it should show under Purchases on the App Store but you may have to "unhide" it to download it again (there are topics under iPhoto here which will tell you how to do that). Alternatively, there are DVDs of iLife '08 and '09 available quite cheaply on eBay. Which version you should get will depend on which version created your iPhoto Library - if it was an earlier version of iPhoto, a later version will simply 'upgrade' your Library, permanently.

I only have DVD 1 - supplied by Apple - I'm hoping I can install SL just from that alone, and that the installation won't fail just because I don't have DVD 2.

,

Do you have a backup you made prior to upgrading to Yosemite? If so, restore iPhoto and your old iTunes library.

TThanks for all your replies. No, thought I had a time machine backup, but seems like I don't. Just have the disc that came with the computer.

OOne last thing... Now I have 10.6.4 and not10.6.6 which menas I can't uppgraderar again to Yosemite if I wanted to?? How can I do the uppgrade again if needed?

thanks, Sara

10.6.8 Combo Updater

Tthanks!

You are welcome.