How to downgrade mavericks to mountain lion

How to downgrade mavericks to mountain lion

If you have the Mountain Lion installer or can download a copy from your Purchases page in App Store then simply run the installer application. Before you install select your target drive. From the Utilities menu select Disk Utility. Repartition and reformat your drive. Quit Disk Utility and continue with the installation of Mountain Lion.
Be sure to backup first because the downgrade will erase all your files.

Similar Messages

  • HT4007 Downgraded OS from Mavericks to Mountain Lion, how to get Aperture to work on Mountain Lion?

    Downgraded OS from Mavericks to Mountain Lion, how to get Aperture to work on Mountain Lion? My iMac (Intel) is older and Apple told me  this model doesn't handle Mavericks well, recommended I step back to Mountain Lion, which was where Aperture was originally used. Aperture was upgraded when I installed Mavericks, need to go back to older version. How?

    Erase disk drive
    Restore backup made prior to upgrade
    Allan

  • I have updated to maverick from mountain lion.initially my mac book pro was snow leopard.the multitrack touch pad swapping the page is not happening in finder,it is only working in safari.please help me how to get that swiping gesture in  finder

    i have updated to maverick from mountain lion.initially my mac book pro was snow leopard.the multitrack touch pad swapping the page to get back to previous page is not happening in finder,it is only working in safari.please help me how to get that swiping gesture in  finder

    Hi..
    I repled to you here >  https://discussions.apple.com/message/25598596#25598596
    Please do not start duplicate topics. It makes it that much harder to assist you.

  • How to go back to Mountain lion os x 10.8 again from mavericks.?

    How to go back to Mountain lion os x 10.8 again from mavericks.?

    You can reinstall your system from a backup (Time Machine or "clone") or erase it completely and reinstall Mountain Lion.
    OS X Mountain Lion: Erase and reinstall OS X
    If your Mac shipped with Mountain Lion already installed, you can reinstall it. Otherwise, you can only reinstall Mountain Lion if you purchased it from the App Store.
    You may be better off describing the problems you're experiencing, so that they can be fixed. The vast majority of Mavericks complaints are due to outdated or poorly written software or similarly incompatible system modifications, and some simple troubleshooting may reveal the cause.

  • So is it just me, or is Mavericks a bust?  My MBP runs way hotter now. I don't have time for trial and error solutions. Is Apple offering a way to downgrade back to Mountain lion? I want out of Mavericks ASAP.

    So is it just me, or is Mavericks a bust?  My MBP runs much hotter since the upgrade. Why do I need ot sit around watching Activity Monitor, manually controlling my fans, and deleting extensions that I enjoy using. Don't even get me started on the Quicktime/Mov issues. I had none of these issues on Mountian Lion. Searching these forums, I see it's not just me. Why would Apple release a new system w/o peoperly testing it on MBPs?
    I don't have time for trial and error solutions. I've tried the obvious ones. No help. Is Apple offering a way to downgrade back to Mountain lion?  Or better yet, a Mavericks update that adresses these problems? As of now, I want out of Mavericks ASAP.
    My processor is 2.6 GHz Intel Core i7.
    8 GB 1600 MHZ DDR3 memory.
    13inch MBP purchased ust over a year ago- 1-13.

    jonny a wrote:
    Nope, it'a not just me, see above. And yup- I'm backed up, But I don't own a Mountain lion install disc. That's why I was posting here in the first place. Thanks
    Nobody owns a ML install disc - ML was only ever distributed as a download from the Mac App Store.
    If you have a Time Machine backup, you can boot into recovery mode and restore from your Moutain Lion TM backup volume.  If you have a system clone, then you can boot from the clone, and just clone ML back onto your internal drive.
    Going back to your previous installation from a backup should be trivially simply if you have the backup in hand.

  • Downgrade from Mavericks to Mountain Lion

    I am considering to downgrade from Mavericks to Mountain Lion, and understand I would loose the maps app and some features... but is it worth it it so I dont have to continuously reboot my mac, so I can use a program every time ?
    The problems I am having with mavericks, even when I have done a few tweaks , is that after running a few programs such as mail, safari, garageband  first and then loading photobooth... photobooth or any video app tends to lag , and the video is recorded lagging. A reboot fixes this if i start the program after reboot and not run any programs before.
    Another issue is when I am doing my artwork, drawing in photoshop or manga studio... the pen tablet begins to lag as well, so I would have to save my work, reboot and then continue working until Mavericks starts misbehaving again.
    This mac had its drive wipped clean before It became my personal mac, and I requested Mountain Lion, since I prefered it, but Mavericks was installed.
    I dont mind Mavericks... its just this rebooting to fix or refresh system... is getting annoying when I need to get some artwork done.

    Hi qldfirey,
    I'm sorry to hear that you have had issues trying to work with your Officejet 8600 since upgrading to Mac OS X 10.9.
    I have included a link to the full feature software for your Officejet 8600 printer in Mac OS X 10.9. If you still have the driver from your previous operating system loaded on your Mac please uninstall the printer before installing with the updated driver. I have included a link with the steps to uninstall.
    Officejet 8600 Mac OS X 10.9 Full Feature Software Driver Download
    http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=oj-125213- 1&cc=us&dlc=en&lc=en&os=4159&product=4323659&sw_lang=
    Uninstalling the Printer Software
    http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c02440673
    Happytohelp01
    I work on behalf of HP

  • HT201364 I am using the os x 10.7.5  how can i get the mountain lion in order to upgrade to Mavericks

    I am using the os x 10.7.5  how can i get the mountain lion in order to upgrade to Mavericks

    What, specifically, is your Mac model?
    MacBook Pro, but need the year it was released, processor speed, etc. This will determine if it *can* be upgraded further.
    Best,
    - Neil.

  • Dual boot: OS X Mavericks and Mountain Lion?

    Hi there,
    searching the internet I found a lot of video tutorials and discussions about the proper way to partition your hard drive so you can boot OS X Mavericks from your Mountain Lion system.
    However, having installed Mavericks right after its release, I'm trying to install Mountain Lion as a partition on my computer. That's because I need to run some apps which aren't compatible with Mavericks.
    As the Mountain Lion installer consistently tells me that it wasn't possible to run the system on my computer I wonder whether there's a way to boot both, Mavericks and Mountain Lion once you have installed Mavericks.
    I'm grateful for any advice.
    Thanks,
    Lukas

    If you are trying to run the Mountain Lion installer from Mavericks, it will probably tell you it can't.  I'm currently booted from Mountain Lion and tested the Lion installer and it told me no.
    What you can do is make a Mountain Lion USB installer and boot from it.  Now you can select the partition you created and install mountain Lion onto it.  When the installer is finished (it will boot once at least), you'll be in Mountain Lion.  To change back to Mavericks, open system preferences and select startup drive, there you can chose what starts at the next boot.
    Instructions for making a Mountain Lion USB are here
    http://arstechnica.com/apple/2012/07/how-to-create-a-bootable-backup-mountain-li on-install-disk/

  • Installing Mavericks over Mountain Lion

    I try to install Mavericks over Mountain Lion but keep getting this message: Unapproved caller, securityagent may only be invoked by Apple software.
    Now I am stocked and cannot do anything :-(
    Any suggestions?

    Dang! that was so NOT cool. Same thing happened to me and feel lucky to have found this thread.
    I was stuck in a loop of that dialog popping up saying "Unapproved Caller". I tried clicking OK repeatedly and it still kept popping up.
    Seeing the comment about Safe Mode, I took the gamble and held the power switch on my 27" iMac until it powered off, waited a moment, then pushed the power button again and as soon as the chime sound happened, held Shift key to boot in Safe Mode and that worked just like it did for @Bart2904.
    How in the world would an average user know how to recover from such a situation - it would be bricked computer and a trip to Genius bar. Again, not cool.

  • Revert OSX from Mavericks to Mountain Lion

    I'm extremely disappointed and annoyed with Mavericks.  Mail isn't working and also having problems with my two additional displays.  System is so sluggish I can't accomplish anything.  How do I revert from Mavericks to Mountain Lion?  Thanks!

    Mavericks is extremely zippy I suspect you either have a corrupt install, need to re-index spotlight or had an unstable install of ML to begin with. Once you have updated to Mavericks unless you have a bootable clone with ML still on it  you will have to troubleshoot Mavericks  until you have it right.
    However my recommendation is you should probably post on the Mavericks forum and look for solutions there.

  • Replace mavericks with Mountain Lion

    I'm thinking of buying a Mac mini, it will have Mavericks installed but some of my software won't run on Mavericks but will on Mountain Lion. I see Mountain Lion is being sold at a reasonable price.
    So if I replace Mavericks with Mountain Lion is that going to work (guy in the Apple Store thought it was a bad idea) and will I be able to re install Mavericks at a later date and will I have to buy it again?

    You could check when there is more than one model
    Mini in the Special Deals refurbish store page, and
    ask Sales if one from two years ago can run Mt Lion.
    Previous model years are sometimes a better bet,
    though a few more recent Macs still could boot from
    a previous OS X version, don't bet on it. I'd ordered
    a refurb Mac from the Apple Store some time back
    and a capability stated to be functional wasn't in it.
    There should be more information on the capability
    of a recent/offered model Mini, if it could run Mt Lion.
    You'd probably need to try to install it in a separate
    external hard disk drive enclosure, if possible, so as
    to keep the original Mavericks intact. Even if it works.
    These use Internet/Recovery to restore an original OS X
    as well as internet to update/upgrade it. No DVDs.
    PS: you could try & make a bootable recovery USB per
    advice in this third-party article, though it may not help
    resolve, update, or change new computer to run old OSX.
    http://arstechnica.com/apple/2013/10/how-to-make-your-own-bootable-os-x-10-9-mav ericks-usb-install-drive/
    This kind of technical question relies on hard to access
    information that would be arrived at, here, by trial & error.
    Good luck
    edited

  • HT2357 So how does this work on Mountain Lion? I cannot seem to ignore the iTunes 11 updates, which now seem to appear every 5 minutes!!

    So how does this work on Mountain Lion? I cannot seem to ignore the iTunes 11 updates, which now seem to appear every 5 minutes!!

    Fantastic!  Didn't work at first so restarted App store and tried again.  This time it asked 'ignore update'.  All gone!

  • I have a pre-2008 Mac PRO how do I upgrade to Mountain Lion?

    I have a pre-2008 Mac PRO how do I upgrade to Mountain Lion? On the Apple's site on upgrading (http://www.apple.com/osx/how-to-upgrade/), I see that "Mac Pro (Early 2008 or newer)" is required for the upgrade. What's up with that?
    Will upgrading of the GPU do the trick?
    I'm curretly on Snow Leopard, will I be limited to Lion?
    Kamal
    my system info:
    Hardware Overview:
      Model Name:          Mac Pro
      Model Identifier:          MacPro1,1
      Processor Name:          Dual-Core Intel Xeon
      Processor Speed:          2.66 GHz
      Number Of Processors:          2
      Total Number Of Cores:          4
      L2 Cache (per processor):          4 MB
      Memory:          13 GB
      Bus Speed:          1.33 GHz
      Boot ROM Version:          MP11.005C.B08
      SMC Version (system):          1.7f10
      Serial Number (system): xxxxxxxxxxxxxxxxxxxxxx
      Hardware UUID:          00000000-0000-1000-8000-00xxxxxxxx
    ATI Radeon X1900 XT:
      Chipset Model:          ATY,RadeonX1900
      Type:          GPU
      Bus:          PCIe
      Slot:          Slot-1
      PCIe Lane Width:          x16
      VRAM (Total):          512 MB
      Vendor:          ATI (0x1002)
      Device ID:          0x7249
      Revision ID:          0x0000
      ROM Revision:          113-A52027-140
      EFI Driver Version:          01.00.140

    I have the following Mac Pro which I have upgraded the GPU to an ATI Radeon HD 5770:
    Hardware Overview:
      Model Name:          Mac Pro
      Model Identifier:          MacPro1,1
      Processor Name:          Dual-Core Intel Xeon
      Processor Speed:          3 GHz
      Number of Processors:          2
      Total Number of Cores:          4
      L2 Cache (per Processor):          4 MB
      Memory:          8 GB
      Bus Speed:          1.33 GHz
      Boot ROM Version:          MP11.005C.B08
      SMC Version (system):          1.7f10
      Serial Number (system):          G86334VTUPZ
      Hardware UUID:          00000000-0000-1000-8000-0017F20153D2
    Mountain Lion won't install.
    Will this change or do I need to further upgrade the GPU.
    Thanks In Advance!
    --Dave K.

  • On OSX Lion i used to drag the window to the top of the screen and get maximise, and drag the window right or left to show the both beside each other just like windows 7, How to do it on Mountain lion ?

    On OSX Lion i used to drag the window to the top of the screen and get it maximise, and drag the window right or left to show the both beside each other just like windows 7, How to do it on Mountain lion ?

    That has never been a feature of Mac OS X, but I believe there was some kind of third-party software that could add that capability.  i don't recall what its name is, but you must have had that installed, and it either isn't installed anymore (perhaps removed as incompatible?) or is not working properly in Mountain Lion.

  • How do I re-install Mountain Lion on a new hard drive (replacement)?

    I have an older iMac 24" (2007) that has been up-graded to Mountain lion.  I want to replace my hard drive with a bigger one (has 500Gb).  How can I re-install Mountain Lion on my new drive?  I have Time Machine on this machine.

    Install 10.6 and 10.8 onto the new drive exactly how you did it on the old drive, except that you won't need to pay to redownload 10.8. Alternatively, if you kept a copy of the 10.8 installer, you can just rerun it.
    (72891)

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