How do I revert to OS X 10.8 Mountain Lion?

My white macbook (early 2009) cannot handle Mavericks. I need to re-install Mountain Lion, which I purchased and downloaded soon after it came out. ML is not showing up in my purchase history so I'm not sure how to get it back. I do have Time Machine but unfortunately haven't back up in 90 days. Any suggestions on how to return to Mountain Lion so I can get my computer working again?

You can restore a Mountain Lion backup, if you have one. Otherwise, you can purchase a download coupon for Mountain Lion.
Purchase a redemption code at the Online Apple Store: OS X Mountain Lion. Mountain Lion is $19.99 plus tax. Use the code to redeem a download of Mountain Lion from the App Store. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
What problem do you have with Mavericks?

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How can I revert my Macbook Air back to Mountain Lion?

I got my Macbook Air for Christmas in 2012, so it's only a little over a year old. It came with Mountain Lion, and it's been fine, until I updated it to Mavericks. Well, it was alright for a little bit, until the past two days, it has frozen on me for absolutely no reason at all twice. I wasn't running a lot of programs or anything, my hard drive space was fine, my battery was fine, and I've taken good care of it (never spilt anything on it, dropped or banged it). When it froze, the keyboard and cursor didn't respond, it wouldn't go into sleep mode and the sound skipped. All I could do was hold the power button until it shut off. So I was doing research on it and I think the reason is Mavericks. So I backed up my important things onto a separate drive, and I did the restart with command+r and I erased the hard drive completely. But now the only option for installing is reinstalling Mavericks, which I don't want to do because I'll be brought back to square one. My brother has a disc for Snow Leopard, but apparently you shouldn't downgrade a computer to a system software older than the one it came with...does this mean I have to buy Mountain Lion now or something? I don't have any backups in Time Machine (which is stupid of me). My mom has a Macbook Pro with Lion, but I don't know if I can do anything with that (unless it came with a CD, which I don't think it did, and besides it's still an older version). Am I just stuck with Mavericks then? I wish I never upgraded...unless the freezing is related to something else?

Okay. What I could possibly try doing is reinstalling Mavericks, and now that my computer's hard drive is empty, try using it and seeing if it starts freezing again. For all I know, the cause may not be Mavericks, and maybe erasing the hard drive might have fixed it...but if that doesn't work, then I'll probably have to contact Apple or something about it, and see if going back to Mountain Lion fixes it, or if there's something else wrong with my computer.

How can I create a group Calendar in iCal, Mountain Lion

How can I create a group Calendar in iCal, Mountain Lion?

How can I create a group Calendar in iCal, Mountain Lion?

How to download purchased installation image of OS X Mountain Lion

How to download purchased installation image of OS X Mountain Lion for clean boot installation.

When, and if, you can get Mountain Lioin to download, it will automatically try to install itself. If you want to create a bootable installation disk (disc), quit the installer. You'll have a file in your Applications folder a file named "Install OS X Mountain Lion.app". Get yourself either a 8GB+ USB flash drive or use a dual-layer DVD and use Lion DiskMaker to create a bootable installation flash drive or DVD (the USB flash drive will be faster).
Don't know why you're having trouble with the download, though....
Clinton

How much will it cost to update to OSX Mountain lion when it becomes available?

How much will it cost to update to OSX Mountain Lion when it becomes available?

Abisingar wrote:
How much will it cost to update to OSX Mountain Lion when it becomes available?
I read somewhere it will be $299.00 I also read somewhere that it will be .99c I also read somewhere.......etc. etc. For goodness sakes, wait till it is released! We know nothing more than you except that it will be the next OSX.
Pete

How do i do a full reintstall of osx Mountain Lion

How do I do a full reinstall of OSX Mountain Lion so that all data from my internal hard drive on my Macbook Pro is wiped out and starting fresh?

Install or Reinstall Mavericks, Lion/Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
      the Security button and set the Zero Data option to one-pass. Click on
      the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion, Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.

Where can I learn how to setup and use the new features in Mountain Lion?

Where can I learn how to setup and use the new features in Mountain Lion?

MacWorld has a Superguide, TidBITS has Take Control books, and probably a flock of other publishers have physical books.

Mavericks: How can you deactivate scrolling like you could with Mountain Lion? I mean shut off, nothing else.

Mavericks, mouse: How can you deactivate scrolling like you could with Mountain Lion? I mean shut off, nothing else, and I need it for photoshop. PS: Apple people: Mavericks is not satisfying - why turn good things bad? Urs Keller, Switzerland

Open System Preferences then type scrolling in the search field top right corner of that window.
There may be more than one way to do this for you.

How do I revert back to Snow Leopard from OS Lion without losing files etc

I need to revert back as my work VPN cannot operate with the java cocoa version that is part of safari due to the OS Lion upgrade I performed. I have done a ton of work on my system in the last week and don't want to lose any of it - and no I didn't use time machine. HOw much am I going to lose when I uninstall Lion and then reinstall Leopard?
Thank so much for your help,
cmw

First, do a full backup of your current system.
Reformat your hard drive's main partition that you want to revert to Snow Leopard from Lion. This will delete EVERYTHING on the partition, which is why you need to do the backup first.
Reinstall Snow Leopard from the installer media you own.
Download then install the Mac OS X 10.6.8 Combo Updater.
Run Software Update repeatedly until there are no updates left to install.
Reinstall all your third-party applications.
Connect the backup you made of the Lion system and copy over your data. You should only have to copy over the files you know about within your own user account folder.
If you do this right, you'll have everything back in Snow Leopard with no loss. If you do it wrong, well, that's another reason we made a backup all the way back in the beginning of this process - you can always start over.

How many machines can I install on with one Mountain Lion download?

I want to upgrade to Mountain Lion, but I have both an iMac and a MacBook Pro. Do I have to buy two Mountain Lion downloads - one for each, or can I somehow download twice after paying once?
Judy

Actually, having made the same claim a couple of days ago and being proven completely wrong, I have a certain responsibility to correct you by mentioning that there is no limit to how many machines ML can be installed on, as long as you own or control those machines.
See section 2B(i): http://images.apple.com/legal/sla/docs/OSX108.pdf

How do i turn off messages with the new mountain lion os?

My husband and I share an Apple ID. When I use the iMessages on my MacBook it send them to both of our iPhones. How can I turn this off on my computer?

While we all have MacBooks in this forum most of us don’t run Mountain Lion. There's a Mountain Lion Support Community where everybody has Mountain Lion. You should also post this question there to increase your chances of getting an answer. https://discussions.apple.com/community/mac_os/os_x_mountain_lion

How do I use Disk Utility to help install Mountain Lion after many failed attempts?

I tried to install Mountain Lion from an App onto my MacBook.
First it said that my disk was damaged to i tried to repair it.
Didn't work.
Then it said I didn't have enough room to install Mountain Lion.
Then I tried to restore Lion.
Didn't work.
Then someone suggested I reset my PRAM.
Tried that, and now I am stuck.
I can't restore any of my backups from timeline.
I can't reinstall OSX because my drive is now locked.
And I don't know how to use Disk Utility to solve this problem!
Any suggestions welcome... I'm in way deeper than I understand and feel like anything I do is making this worse!

I gather that your computer is in a less than satisfactory state, so the process below will basically start you from scratch, but you shouldn't lose anything.
Okay, can you inspect the Time Machine Backups with the Finder? About two or so folders down you should start seeing your system files. Assuming all your files are present.
Important^
You probably have an installation disk that came with your macBook. Boot from that CD and install from the CD.
Run the verify disk utilites and repair utilities if necessary.
You may want to erase your disk from the CD's disk utility. This will erase your Hard Drive (make sure you do not erase your backups, as that would be very bad).
Once the installation is complete, run all system updates. Either look through your backup and find the Mountain lion installation app, or download it from the app store again.
Run the ML installtion app.
Once everything is up and running, move all files and folders you want from your TM backups and you should be good to go.

How do i wipe my hard drive and install Mountain lion

OK i wanted to install mavrick but i got my macbook pro in june of 2007 so it's to old. The command R does nothing when i reboot, and everything i find online about clearing my hard drive and getting ready to install mountain lion has that step in it. So how do i clear my hard drive so my computer is brand new like the day i bought it and also update my OS from snow leapard. Do i need to buy the disk for mountain lion or can i just download it? if someone has a link to something helpful i would love to have it.. Thanks

If you can't run Mavericks, you can't run Mountain Lion because they have the same hardware requirements.
Check that your computer is compatible with Mountain Lion/Mavericks.
To check the model number hold down the option/alt key, go to the Apple menu and select System Information.
MacBook Pro (Mid/Late 2007 or newer) model number 3,1 or higher
Your Mac needs:
OS X v10.6.8 or OS X Lion already installed
2 GB or more of memory (More is better - 4 GB minimum seems to be the consensus)
8 GB or more of available space
If your computer isn’t compatible, you might be able to upgrade to Lion.
Computer Compatibility - Lion                       Lion
Check to make sure your applications are compatible. PowerPC applications are no longer supported after 10.6.
Application Compatibility
Applications Compatibility (2)

How to make a hard copy of the OS mountain lion that i downloaded

How to make a hard copy of the file ofthe OS mountain lion downloaded from apple

Follow the directions in this link to make a Mt. Lion USB thumb drive:
http://www.macworld.com/article/1167857/how_to_make_a_bootable_mountain_lion_ins tall_drive.html
Ciao.

How do i change to 32bit colour depth in mountain lion?

I was trying to access my favourite poker site when this message was displayed " This game requires the color depth to be set to 32 bits (millions of colors) in your display" , before i upgraded to mountain lion i never had problems with this, any suggestions on how to set the depth?

I've not seen this exact message on the Mac when using SMB to connect to a server/NAS. Are you using the File > Connect to Server method and then typing in smb://computer_name/share_name in the 10.8 Mac?
Note that Apple made changes to SMB in 10.7 (Lion). Have a read of this article. This new version made it impossible for some devices to connect to the Mac share using SMB and I believe it was the same in the other direction, although I have no experience with that.

How do I revert to OS X 10.8 Mountain Lion?

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