How do I remove Mountain Lion and reinstate the original server OS

I have upgraded to Mountain Lion on my MacBook Air, the problem was that my Mac mini showed it available on the apps store, which I then (Stupidly) downloaded. Can anyone tell me know how to turn back time and remove Mountain Lion from my Mac mini and reinstate the server OS as now the server will not operate correctly. - HELP!

pforkes wrote:
I want to do a completely clean install of Mountain Lion.
I had Snow Leopard installed, upgraded to Mountain Lion (by buying it from the App Store) but how do I tell it to format the drive and then install Mountain Lion?
Snow Leopard would have needed to be installed on a properly formatted drive, so I don't understand why you would need to format it again to that same format.
Cheers
Pete

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How do I install Mountain Lion AND format the hard drive?

I want to do a completely clean install of Mountain Lion.
I had Snow Leopard installed, upgraded to Mountain Lion (by buying it from the App Store) but how do I tell it to format the drive and then install Mountain Lion?

pforkes wrote:
I want to do a completely clean install of Mountain Lion.
I had Snow Leopard installed, upgraded to Mountain Lion (by buying it from the App Store) but how do I tell it to format the drive and then install Mountain Lion?
Snow Leopard would have needed to be installed on a properly formatted drive, so I don't understand why you would need to format it again to that same format.
Cheers
Pete

How do I uninstall Mountain Lion and restore the prior program?

I am having too much trouble with my iMac since purchasing and downloading Mountain Lion. Can anyone give me simple directions on how to uninstall the OS and revert back to the prior program. I am not a computer savant! thanks

Unfortunately, installing a previous version of OS X is not simple. It might be easier to try to address the issues you're having with 10.8 - if you can explain what's happening, we can try to help.
Matt

I downloaded mountain lion and then the new office suite (word, ppt, excel) but now when I try to display one of my ppt's it says 'ppt cannot open the file...the file may be corrupt, in use, not a type recognized by ppt etc.." how can I fix it?? HELP

I downloaded mountain lion and then the new office suite (word, ppt, excel) but now when I try to display one of my ppt's it says 'ppt cannot open the file...the file may be corrupt, in use, not a type recognized by ppt etc.." how can I fix it?? HELP

Did you try to open teh fle by double-clicking its icon? If the file was made with an older version of Office, you may get that message. Try opeing PP and, from its "File" menu, see if you can open the ppt. I've foundthat often gets around that message and then yo ucan save the file from the newer version.
If that doesn't work, consider asking in the Microsoft Office: Mac forums here:
Office for Mac forums
PowerPoint is not an Apple product and it seems a lot of people around here avoid Office.

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I am selling my Mac Mini. I recently purchased OS X Lion. When I restore to factory settings, how can I ensure that the operating system will still be Lion, and not the original operating system, which I believe was Snow Leopard?

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If you bought Lion from the App Store, you can't legally or practically transfer it, because it's tied to your Apple ID. Reinstall the original software from the discs that came with the machine.

Did download OS X Mountain Lion and see the features in my applications, but not reflecting in my APPS purchases.

did download OS X Mountain Lion and see the features in my applications, but not reflecting in my APPS purchases.
also this takes huge amount of time, almost 10 hours to download, even using 3G Net connection.

Hi kiwirudy,
I've had the same problem more than once since I started trying to download my 14 April purchase of OS X Mountain Lion.
I found a property list called manifest.plist in my ~/Library/Application Support/AppStore folder which had a Boolean property called failed checked. I unchecked it and afterwards I was able to resume my download.
Here are some steps I've found useful:
Close the Mac App Store.
make a copy of the ~/Library/Application Support/AppStore folder. For some strange reason the Mac App Store likes to just delete it in some circumstances, which will mean that one has to start one's download again from the very beginning.
Double click on the manifest.plist in one's ~/Library/Application Support/AppStore folder.
This should open it in Property List Editor.
Expand all the nodes (holding down the alt key and clicking on the highest collapsed node should do it.
Find a key called failed of type Boolean and uncheck it.
Save the manifest.plist and close it.
Open the Mac App Store.
The red message "an error has occured" should now be gone and one should be able to resume one's download.
In the event that the ~/Library/Application Support/AppStore folder gets deleted:
start the download again (it will start from the beginning), pause it and close the Mac App Store.
copy your backup copy of the pkg file back to its sub-folder (it's a numbered folder in the ~/Library/Application Support/AppStore folder).
Open the Mac App Store and resume your download.
It should continue from where it left off.
This has worked for me so far. I'm holding my breath. Don't know if I'll still be alive when it's finished.
Regards
Nic
Message was edited by: n c h

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If this is on a 2011 model o[r mid 2012 that came with Lion originally boot to the Internet Recovery system. That is booting the computer over the internet.
Hold down the Command+Option+r keys until you see a spinning globe in the center of the screen. Once the Recovery system fully loads use Disk Utility to Re-Partition the drive as one partition. you must do that to completely remove Mt Lion and the Mt Lion Recovery HD partition.
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Thank you,

To get more to the point the answer is the only way to go back to SnowLeopard is if you have a complete backup of your system from before the upgrade.
If you do you would boot off your original SL DVD wipe the disk and install SL and then restore from your SL backups.
Short of that here is no way to go back. But as the others have offered there are other less drastic means to deal with the problem.
regards

HT3910 How do I erase Mountain Lion and reinstall Snow Leopard?

Can anyone help me erase Mountain Lion and reinstall Snow Leopard. When I had installed Mountain Lion,I discovered that my music notation program, Overture was not working with Mountain Lion. Please help me, years of work is for now lost.

Back up your data files.
Use the Snow Leopard installer disc to completely erase your hard drive and everything on it.
Re-install the SL operating system, then all your applications, then your data files.
If you happened to make a bootable backup clone of your hard drive before installing Mountail Lion then you can just clone the backup back to your drive.

I upgraded my imac to OS Mountain Lion and now the Seagate Goflex external HDD is not recognised

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A bit more info for those of you reading this.... the problem seemed to be in iTunes. For each connected device , if I clicked on the Photo option I could no longer select the second radio button for limiting the photos by Events, Albums, etc. It was an all or nothing deal. But selecting all would cause the error.
So I had read the other forum posts about the "&" symbol being the cause of the problem. I went through iPhoto and made all of the changes. It did not work. I then looked at iTunes, using the AlbumData2.xml file listed in the other forums as a reference. I found one album with the "&". I edited that one. Still would not work. So then I spent 3 hours on the phone with AppleCare last week. I talked with 4 different advisors. None of them had heard about the "&" error from the forums. We tried everything in iPhoto including repair and rebuild. Finally we created a whole new library and reimported my master photos from my original one. Using this option would allow me to now check off that radio button in iTunes. BUT... I now lost all of my albums and events and would need to rebuid them. I was not happy. They agreed and we set up time to talk this week.
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How do I add Mountain Lion and still keep Snow Leopard for use on specific software

I currently am using OS 10.6.8 which supports Final Cut Studio version 7.5. I do not wish to change my Final Cut work, however I am now developing APPS and need the xcode tools which are only supported on OS 10.7 or higher. Can someone please direct me to any information on how I can set up my Macbook Pro to run both OS systems?

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How do I uninstall mountain lion and go back to lion, how do I uninstall mountain lion and go back to lion

Please help!!! I dont like it!

The installer may do squirrelly things in an upgrade like nip and tuck the code, turning Lion into Mountain Lion. The best option is to do a fresh install. Do a Time Machine backup of your files (you can probably exclude the system folder and apps - just download them again from the App Store). Concentrate on your home folder - iTunes files, your library folder, iPhoto library, etc. Re-download Mountain Lion from the App Store. If the installer starts, quit the app. Now go to your Application folder and find the Mountain Lion installer. View the contents of the package and go to Contents:SharedSupport:InstallESD.dmg. Drag the .dmg file to your desktop or someplace else convenient. Next, open Disk Utility and burn the disk image to an 8 GB DVD or flash drive. If you burn it to a flash drive, you may get an error saying the burn failed. If it burned for a while, long enough for the image to actually copy over, ignore it. Reboot your Mac whole holding down the Option key with the flash drive in a USB port or DVD in the drive. You should get the option to boot from that drive. Select the Mountain Lion DVD/USB option to test the boot. You can then either continue the installation or quit the installer until you're ready.
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How do I remove Mountain Lion and reinstate the original server OS

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