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Uninstall Snow Leopard

Installed Snow Leopard, front end seems OK but compatibility issues with VMWare Fusion virtual machine - just want to revert back to previous OS - not using Time Machine - any suggestions.

iMac Intel Based 24", Mac OS X (10.6)

Posted on Aug 31, 2009 12:59 PM

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9 replies

Aug 31, 2009 1:06 PM in response to M91

I hope you had a bootable back-up which was an exact copy of your main drive before you installed Snow Leopard. Never do a major system upgrade without at least two of them.

If you have a bootable back-up, restart and press option key, when the bootable back-up shows up on your screen, choose it. Once booted into the bootable back-up, you can reverse the process and now do a bootable back-up onto your main drive. This will put the main drive back into the position it was before you installed SL.

If you want to be extra careful, erase the main drive with Disk Utility and then do the reverse bootable back-up onto the main drive.

I've had many difficulties with SL on three machines and I've lost nothing, because each time I could go back to square one with my bootable back-ups. By now, I've sorted out the problems on two machines and I'm enjoying SL on them.

Aug 31, 2009 1:15 PM in response to William Lloyd

Thanks for your reply William. Noticing it periodically locks up, can't execute anything, Start button disabled, can't open files, etc., then after a couple of minutes frees up again. Same with apps, excel, StrategyDesk from TD Ameritrade - when active the screen action is choppy. I know I can do a reinstall from the supplied disks but thought there was an easier way around it. As other replier noted, unfortunately didn't do a backup, this is my first Mac.

Sep 4, 2009 3:54 PM in response to M91

If you want to go back to Leopard, then you will need to do an erase and install. I would first try the Leopard (i.e., 10.5) DVD. But, you may have to use the Snow Leopard (i.e., 10.6) DVD for the erase part. Let's assume the first for now. Startup from the DVD by holding down c when starting up. Next, when able, choose your language and stop. Then, using the menus at the top, select Disk Utility and erase you drive. Next, quit Disk Utility and continue the install. After the install is complete, insert your Leopard applications disk and install the programs you want. Now, you are done.

In the other case, you will have to exit the installer after exiting Disk Utility. Next, you would startup with your Leopard DVD again by holding c down during startup. Now, after selecting your language again, just click install. After the installer is finished, install your applications as above.

Sep 5, 2009 10:30 AM in response to M91

I can't help with these questions but wanted to add my voice to those who are disappointed with Snow Leopard in the hope that Apple monitors these discussions. After spending the morning taking photos I find that I cannot use my Nikon software - they recommend not using it with Snow Leopard. Never having had a problem with such upgrades in the past I foolishly became an early adopter. By the way, I am having trouble printing with my deskjet printer at work as well. Apple should have put many more disclaimers on the install page. I really don't want to go back to Leopard with all the trouble that entails.

Sep 5, 2009 9:52 PM in response to TomKlu

You can maybe access your photos via the Image Capture software. That was the only way I could transfer photos from my camera to my iMac after installing SL. Image Capture is the only software which recognizes my camera, and after opening it and iPhoto simultaneously, iPhoto finally recognized my camera (after a lag of about 10-15 min) and I was able to copy photos into iPhoto as usual. I don't know if this is a coincidence or not, but whatever works is good for me, until Apple comes up with a solution to this problem. My scanner so far though is a lost cause, not supported under SL.

Uninstall Snow Leopard

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