I want to clear out my MacBook and reinstall snow leopard. How

I want to clear out my MacBook and reinstall snow leopard. I have disc. How do I do this

Insert it, restart with the C key held down, use the Disk Utility to erase the drive, and install the OS. If you're going to be selling or giving away the computer, securely delete all the files which may contain sensitive data first, and include the disk with it.
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Similar Messages

  • I have a iMac 6,1 that I want to reformat the hard drive and reinstall Snow Leopard version 10.6.3 . I don't know how to reformat

    I have a iMac 6,1 that I need to reformat the hard drive and reinstall Snow Leopard version 10.6.3 . How do I reformat ?

    Boot the ssystem from the OS DVD. Once it is booted run Disk Utiltiy. Select OS Extrended (Journled)
    See http://support.apple.com/kb/HT3910?viewlocale=en_US&locale=en_US

  • I have a mid 2010 Macbook Pro running Snow Leopard and foolishly upgraded to Yosemite.  Is it possible to go back in time with Time Machine and reinstall Snow Leopard.  Then upgrade to Lion or Mavericks?  Any other ideas on how I can exit Yosemite?

    I have a mid 2010 Macbook Pro running Snow Leopard and foolishly upgraded to Yosemite. Now have numerous problems.  Is it possible to go back in time with Time Machine and reinstall Snow Leopard?  Then upgrade to Lion or Mavericks?  Any other ideas on how I can exit Yosemite?

    Once you get yourself back to Snow Leopard, if you still want to upgrade somewhat, I would suggest the following:
    1. Get an external hard drive that you can use for experiments with new OS versions. You could partition it into 2 or 3 partitions. You could then clone your existing Snow Leopard system to one partition using Carbon Copy Cloner (well worth $40) or SuperDuper ($25).
    2. Buy OS X Mountain Lion for $20, through the Apple online store (I don't think it's available through the App Store). Apple has decided to make it very difficult for anyone to get Mavericks unless they have already downloaded it.
    You will receive two e-mails from Apple, one containing a PDF with a redemption code, and one with the password you will need to unlock the PDF. Using the code, you will download Mountain Lion from the App Store, where it will appear among your Purchased items.
    After ML finishes downloading, its installer app will launch itself. When you see this launch screen, QUIT the install app immediately! Go to your applications folder, find the Install OS X Mountain Lion app, and copy it to a safe location outside of your Applications folder. Keeping one or more copies will allow you to reinstall without unnecessary aggravation if you later need or want to do that. At this point, you can re-launch the Installer in the Applications folder and let it run. You can install it on a clean partition on your external HD, or you can allow it to upgrade the Snow Leopard clone you created on your external drive, or you can do both. This should allow you to test how everything works for as long as you like.
    3. If you left yourself a free partition on your test drive, try a clean install of Yosemite and set everything up from scratch (do not migrate anything). This will allow you to see whether your problems with it were related to something in your Snow Leopard system.

  • I have installed mountain lion on my macbook pro ,but it made my mac very slow. Would someone please tell me how  to uninstall this one and reinstall snow leopard?

    Hello,
    I have installed mountain lion on my macbook pro ,but it made my mac very slow. Would someone please tell me how  to uninstall this one and reinstall snow leopard? I tried to do it by my original CDs but macbook  pro didn't let me to do it.
    Thanks

    It would be easier to just fix whatever is making your machine slow.
    I wrote a little diagnostic program to help show what might be causing these problems. Download EtreCheck from http://www.etresoft.com/download/EtreCheck.zip, run it, and paste the results here.
    Disclaimer: Although EtreCheck is free, there are other links on my site that could give me some form of compensation, financial or otherwise.

  • I have a 2010 Macbook, and have snow leopard on it. Do I need to upgrade to Mountain Lion first on order to be able to upgrade to Mavericks?

    I have a 2010 Macbook, and have snow leopard on it. Do I need to upgrade to Mountain Lion first on order to be able to upgrade to Mavericks?

    Lanny wrote:
    You shouldn't assume that someone with a 2010 Mac is going to have a lot of incompatible PowerPC software.
    It's wrong for you to assume that they don't care about what they are about to lose, even if it's one PPC program.
    It's not uncommon for people to keep their software up to date.
    It's wrong for you to assume that all software is being updated or that there are Intel versions available.
    I have a mid/late-2007 MacBook Pro 3.1 with 6 Gigs of RAM and a 750 Gig 7200rpm hybrid hard drive that is running Mountain Lion just fine. Performance benchmarks with Geekbench are equal between SL and ML, and the Mac runs about 20 F degrees cooler than it did with SL.
    You took extremely good care of your almost 7 year old machine and judiciously used it, you added more RAM and a faster cooler hybrid drive to make up for the more feature rich yet slower performing Mountain Lion.
    Congratulations, your a conservative.
    It would be nice to have some empathy for the people you advise that they also also don't get suddenly ambused by a OS X upgrade that's going to disable software they care about using still.

  • Can I delete maverick and reinstall snow leopard?

    Can I delete os maverick on MacBook Pro  and reinstall snow leopard?

    Yes you can. But in doing so you will need to wipe out the complete drive so you should first manually backup your user files to an external drive. That is copy all your personal files over to an external drive and not with Time Machine.

  • How do you erase Lion and reinstall Snow Leopard

    I want to remove Lion and reinstall Snow Leopard.  I put the install disc in and clicked Install so that I could get to the disc utilities.  Got a reading that this version of OS X cannot be used on this computer.  I'm using a mid-2010 15" MacBook Pro.  I don't have any backups made, but I am not worried about that...I just want to go back to using Snow Leopard.  Lion has too many quirks I don't want to put up with.  Any suggestions?

    Downgrade Lion to Snow Leopard
    1.  Boot from your Snow Leopard Installer Disc. 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.
    2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area.  If it does not say "Verified" then the drive is failing or has failed and will need replacing.  SMART info will not be reported  on external drives. Otherwise, click on the Partition tab in the DU main window.
    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
    4. Quit DU and return to the installer. Install Snow Leopard.
    This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard (see below.) I suggest you make a separate backup using Carbon Copy Cloner 3.4.1.
    If you have Snow Leopard Time Machine backups, do a full system restore per #14 in Time Machine - Frequently Asked Questions.  If you have subsequent backups from Lion, you can restore newer items selectively, via the "Star Wars" display, per #15 there, but be careful; some Snow Leopard apps may not work with the Lion files.

  • A Kernel Task runs at 700% processor power between every 5 minutes to 1 hour. I have tried Onyx, zapped the PRAM and reinstalled Snow Leopard.

    A Kernel Task runs at 700% processor power between every 5 minutes to 1 hour, slowing down everything I do. I have tried Onyx, zapped the PRAM and reinstalled Snow Leopard. Any suggestions?

    pan did you solve it? i have the same issue. i see people writing 'oh no kernel on 200-300%... well my kernel runs up to 600-800% anytime. i'm running os 10.6.8, i have 2010 2GHz intel core i7, with 16gb ram and... go figure. even ssd drive, thinking i have the fastest possible hardware installed to ease up on any task i'm about to do. but when it gets slow then safari just 'quits' on me, mouse cursor gets so sloppy slow (that's how i always realize that kernel is knocking on the door again). but... i do use screen, 24 apple LED and i have the laptop still open, so dual screen. i think it happens way less when the laptop is closed and i use just the big screen... but i refuse, this is not a calculator, its god **** macbook pro, so if one extra screen kills my workflow then i have to... idont know what. help apple, wth! and your safari ***** so much it's not even nice, it's so buggy but i'm the crazy one, because i keep using it. that's all

  • HELP! How do I remove Lion and reinstall Snow Leopard and my files

    HELP! How do I remove Lion and reinstall Snow Leopard & my files  BUT I just discovered my Apple Time Capsule which was using Time Machine DIED
    I had to go to MacMall and have the Time Capsule data transfered to a new BAK drive($300+$300)
    (The Apple Store sent me there as they said they do not do data transfer)
    Now what do I do?
    ? ?  One Senior advisor said that I will have to drag and drop the data file or files? from the Time Capsule BAK drive back to my iMAC but will that include all           the Snow Leopard operating system ?
    ? ?  Another senior advisor said I will have to wipe my hard drive then install Snow Leopard then "drag and drop",  ?  ??
    All my business leases, database, spreadsheets. letters, mail merge files, and so on are not available with Lion -
    I AM VERY ANGRY AS I NEVER SAW THAT WRITTEN ANYWHERE !!!
    I am seriously confused and I AM SCARED TO MAKE A MISTAKE-HELP !!
    WHAT DO I DO ?  AND   IN WHAT ORDER? PLEASE HELP!

    Your post is confusing to read too.
    It sounds like you still have your files on your Mac. Why do you want to back track to Snow Leopard on your Mac? Why can't you read your files from your Mac? If your files are on your Mac, why are you taking them off your broken Time Capsule? You don't have to install Snow Leopard to transfer your files back to your Mac. Maybe step back a bit and explain your situation a little better with details.  For instance, what's a BAK drive? Suggest you explain what you are trying to do?
    Before you do anything, create a backup of your Mac to another disk drive.. suggest you use Carbon Copy Cloner to make another copy of your Mac.

  • How can I uninstall Maverick and reinstall snow leopard? My mac hasn't been the same since I upgrading to maverick. Runs slow, crashes, can't cope with normal functions.... Help, please help

    How can I uninstall Maverick and reinstall snow leopard?
    My mac hasn't been the same since I upgrading to maverick. Runs slow, crashes, can't cope with normal functions....
    I need to go back to leopard or buy a new MacBook Pro!
    Help, please help

    Revert to a Previous OS X
    Revert to former OS from Mavericks
    Revert to Snow Leopard

  • How do I uninstall mountain lion and reinstall snow leopard

    If I had known that I would not be able to use my excel files I would not have purchased OSX Mountain Lion.  Is there a way to uninstall mountain lion and reinstall snow leopard?
    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.

  • Can i uninstall yosemite and reinstall snow leopard

    Is It possible to uninstall yosemite and to reinstall snow leopard.I am not happy with yosemite.

    Hi Alan I have this problem also and have done the etrecheck here it is. Please be patient with me as I'm not a computer person.
    Problem description:
    Hi I have just downloaded Yosemite and it has slowed my laptop down I am considering uninstalling and re installing snow leopard.
    EtreCheck version: 2.1.8 (121)
    Report generated 13 April 2015 5:55:39 pm AEST
    Download EtreCheck from http://etresoft.com/etrecheck
    Click the [Click for support] links for help with non-Apple products.
    Click the [Click for details] links for more information about that line.
    Click the [Adware! - Remove] links for help removing adware.
    Hardware Information: ℹ️
        MacBook Pro (17-inch, Early 2008) (Verified)
        MacBook Pro - model: MacBookPro4,1
        1 2.5 GHz Intel Core 2 Duo CPU: 2-core
        2 GB RAM Upgradeable
            BANK 0/DIMM0
                1 GB DDR2 SDRAM 667 MHz ok
            BANK 1/DIMM1
                1 GB DDR2 SDRAM 667 MHz ok
        Bluetooth: Old - Handoff/Airdrop2 not supported
        Wireless:  en1: 802.11 a/b/g/n
        Battery Health: Normal - Cycle count 22
    Video Information: ℹ️
        GeForce 8600M GT     - VRAM: 512 MB
            Color LCD 1680 x 1050
    System Software: ℹ️
        OS X 10.10.3 (14D131) - Time since boot: 20:9:2
    Disk Information: ℹ️
        Hitachi HTS542525K9SA00 disk0 : (250.06 GB)
            EFI (disk0s1) <not mounted> : 210 MB
            Macintosh HD (disk0s2) / : 249.20 GB (27.51 GB free)
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
    USB Information: ℹ️
        Apple Inc. Built-in iSight
        Apple, Inc. Apple Internal Keyboard / Trackpad
        Apple Computer, Inc. IR Receiver
        Apple Inc. BRCM2046 Hub
            Apple Inc. Bluetooth USB Host Controller
    Gatekeeper: ℹ️
        Mac App Store and identified developers
    Adware: ℹ️
        Geneio [Adware! - Remove]
    Kernel Extensions: ℹ️
            /Library/Application Support/Symantec/AntiVirus
        [not loaded]    com.symantec.kext.SymAPComm (11.1.2f17) [Click for support]
            /System/Library/Extensions
        [not loaded]    com.ZTE.driver.ZTELTEUSBCDCACMData (5.0.1) [Click for support]
        [not loaded]    com.ZTE.driver.ZTELTEUSBMassStorageFilter (5.0.1) [Click for support]
        [not loaded]    com.ZTE.driver.ZTEUSBCDCACMData (1.3.12) [Click for support]
        [not loaded]    com.ZTE.driver.ZTEUSBMassStorageFilter (1.3.12) [Click for support]
        [loaded]    com.eltima.ElmediaPlayer.kext (1.0) [Click for support]
        [not loaded]    com.sierrawireless.driver.SierraDIPSupport (1.0.0) [Click for support]
        [not loaded]    com.sierrawireless.driver.SierraFSRSupport (3.0.0) [Click for support]
        [not loaded]    com.sierrawireless.driver.SierraHSRSupport (3.0.0) [Click for support]
        [not loaded]    com.sierrawireless.driver.SierraIPDirect (1.1.5) [Click for support]
        [not loaded]    com.symantec.kext.internetSecurity (1.3.2f5) [Click for support]
        [not loaded]    com.symantec.kext.ips (3.2f8) [Click for support]
        [not loaded]    com.zte.LTEdriver.cdc_ecm_qmi (1.0.2) [Click for support]
        [not loaded]    com.zte.LTEdriver.cdc_usb_bus (1.0.2) [Click for support]
    Problem System Launch Agents: ℹ️
        [killed]    com.apple.CallHistoryPluginHelper.plist
        [killed]    com.apple.CallHistorySyncHelper.plist
        [killed]    com.apple.cloudphotosd.plist
        [killed]    com.apple.coreservices.appleid.authentication.plist
        [killed]    com.apple.EscrowSecurityAlert.plist
        [killed]    com.apple.icloud.fmfd.plist
        [killed]    com.apple.Maps.pushdaemon.plist
        [killed]    com.apple.SafariNotificationAgent.plist
        [killed]    com.apple.sbd.plist
        [killed]    com.apple.security.cloudkeychainproxy.plist
        [killed]    com.apple.telephonyutilities.callservicesd.plist
        11 processes killed due to memory pressure
    Problem System Launch Daemons: ℹ️
        [killed]    com.apple.awdd.plist
        [killed]    com.apple.ctkd.plist
        [killed]    com.apple.findmymac.plist
        [killed]    com.apple.ifdreader.plist
        [failed]    com.apple.mtrecorder.plist
        [killed]    com.apple.nehelper.plist
        [killed]    com.apple.wdhelper.plist
        [killed]    com.apple.xpc.smd.plist
        7 processes killed due to memory pressure
    Launch Agents: ℹ️
        [loaded]    com.divx.dms.agent.plist [Click for support]
        [loaded]    com.divx.update.agent.plist [Click for support]
        [running]    com.sierrawireless.SwitchTool.plist [Click for support]
        [running]    com.symantec.uiagent.application.plist [Click for support]
    Launch Daemons: ℹ️
        [loaded]    com.adobe.fpsaud.plist [Click for support]
        [failed]    com.apple.spirecorder.plist
        [running]    com.eltima.ElmediaPlayer.daemon.plist [Click for support]
        [loaded]    com.ManyCamLLC.videodevice.daemon.plist [Click for support]
        [loaded]    com.symantec.avscandaemon.plist [Click for support]
        [running]    com.symantec.diskMountNotify.plist [Click for support]
        [loaded]    com.symantec.MissedTasks.plist [Click for support]
        [loaded]    com.symantec.navapd.plist [Click for support]
        [loaded]    com.symantec.navapdaemonsl.plist [Click for support]
        [loaded]    com.symantec.Sched501-1.plist [Click for support]
        [running]    com.symantec.sharedsettings.plist [Click for support]
        [running]    com.symantec.symdaemon.plist [Click for support]
        [running]    com.symantec.symSchedDaemon.plist [Click for support]
    User Launch Agents: ℹ️
        [loaded]    com.nchsoftware.expresszip.schedule.LikeSurvey.plist [Click for support]
    User Login Items: ℹ️
        AirPort Base Station Agent    Application Hidden (/System/Library/CoreServices/AirPort Base Station Agent.app)
        iTunesHelper    UNKNOWN Hidden (missing value)
        Skype    Application  (/Applications/Skype.app)
        Firefox    Application Hidden (/Applications/Firefox.app)
        TextEdit    Application Hidden (/Applications/TextEdit.app)
        Safari    Application  (/Applications/Safari.app)
        Mobile Broadband Manager    Application  (/Applications/Mobile Broadband Manager.app)
        Dropbox    UNKNOWN  (missing value)
        Genieo    Application  (/Incompatible Software/Genieo.app)
        StatusMenu    Application  (/Incompatible Software/StatusMenu.app)
        SymSecondaryLaunch    Application  (/Library/Application Support/Norton Solutions Support/Scheduler/SymSecondaryLaunch.app)
    Internet Plug-ins: ℹ️
        Flip4Mac WMV Plugin: Version: 2.3.8.1 [Click for support]
        FlashPlayer-10.6: Version: 17.0.0.134 - SDK 10.6 [Click for support]
        OVSHelper: Version: 1.1 [Click for support]
        DivX Web Player: Version: 3.2.4.1250 - SDK 10.6 [Click for support]
        Flash Player: Version: 17.0.0.134 - SDK 10.6 [Click for support]
        Default Browser: Version: 600 - SDK 10.10
        QuickTime Plugin: Version: 7.7.3
        Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Click for support]
        iPhotoPhotocast: Version: 7.0
    Safari Extensions: ℹ️
        Searchme [Adware! - Remove]
        Slick Savings [Adware! - Remove]
        Amazon Shopping Assistant [Adware! - Remove]
        Ebay Shopping Assistant [Adware! - Remove]
    3rd Party Preference Panes: ℹ️
        Flash Player  [Click for support]
        Flip4Mac WMV  [Click for support]
        Norton\nQuickMenu  [Click for support]
    Time Machine: ℹ️
        Skip System Files: NO
        Auto backup: YES
        Volumes being backed up:
            Macintosh HD: Disk size: 249.20 GB Disk used: 221.69 GB
        Destinations:
            Time Machine Backups [Local]
            Total size: 0 B
            Total number of backups: 0
            Oldest backup: -
            Last backup: -
            Size of backup disk: Too small
                Backup size 0 B < (Disk used 221.69 GB X 3)
    Top Processes by CPU: ℹ️
             8%    WindowServer
             0%    AppleSpell
             0%    taskgated
             0%    fontd
             0%    SpotlightNetHelper
    Top Processes by Memory: ℹ️
        110 MB    Safari
        99 MB    mds_stores
        71 MB    softwareupdated
        69 MB    WindowServer
        47 MB    Mail
    Virtual Memory Information: ℹ️
        51 MB    Free RAM
        737 MB    Active RAM
        701 MB    Inactive RAM
        399 MB    Wired RAM
        8.97 GB    Page-ins
        443 MB    Page-outs
    Diagnostics Information: ℹ️
        Apr 13, 2015, 04:57:56 PM    /Library/Logs/DiagnosticReports/com.apple.WebKit.Plugin.64_2015-04-13-165756_[r edacted].cpu_resource.diag [Click for details]
        Apr 12, 2015, 09:44:34 PM    Self test - passed

  • Have recently acquired an additional black MacBook, and installed Snow Leopard onto it. Trying to get it to connect via a plug-in USB wifi unit (poor reception on Airport) I have an extra Network Location which does not work.  How can I remove it?

    Need to get a second hand black MacBook connected.  Poor reception on Airport so tried a plug in wifi aerial. That didn't work, but now have  a Network Location I can't get rid of.  How do I remove it ?

    Hello my ginger,
    I tried what you suggested - but to no success.  The problem came up when I was re-entering the new settings.  If I left it as using DHCP it would run for a few seconds with no IP address, then drop in a 169.254 one which would not connect through.  To overcome this I tried using the 'Using DHCP with manual address' option and entered in an address which it had set up from the clone boot.  This appeared to be okay.  When I then tried renewing DHCP lease sometimes that address held.  When I tried connecting though - no sight of the internet, and the exclamation mark was across the wifi icon in the menu bar. If I switched it to Using DHCP it would randomly fall back to the 169.254 address. 
    The only significant differences I could see when cross checking all the settings info was in the WINS panel the NetBIOS had a slightly different configuration of the name - but as they ended in the same numbers I assumed they were the same.  And, when looking under Keychain Access, in the System section list (it also appeared in the login section) additional info box they had different locations - 28 characters in four groups.  I don't have a clue what this refers to.  Also the allow access list in the boot clone included System Preferences, but did not in the Snow Leopard boot, so I added it in.  With no success. 
    I am so frustrated I am thinking of giving up.  I seen have loads of postings on the net about a variety of problems with wifi connection on Snow Leopard.  I have version 10.6.3.  Did it get any better in later Snow Leopard ?  Or in any of the OS s after that ? It was always so easy and so solid under Leopard - why the h**l did they change it ?

  • How to back up and reinstall Snow Leopard

    My computer keeps crashing. It's mainly to do with items that are flash based, like double clicking flvs, flash being on a website. Sometimes even mail crashes too though.
    I have tried rebuilding the directory with diskwarrior but it is still doing it. So I thought I would uninstall and reinstall everything. My only concern is how do I make sure everything goes back on afterwards properly? I do have an external HD, so I am assuming I can use that but I'm not sure how. Would I lose anything in the process?

    First of all, how much free space is there on your hard drive? You should have at least 10% of its total capacity free for proper OS X operation.
    Assuming this is true, try this:
    Create a new, temporary user account for testing purposes. Log out of your normal account & into this one. Do you still see the same behavior with Safari, Firefox, etc.? If not, something in your home folder is the problem, possibly bad preference files or an incompatible login item.
    Also check your Internet Plugins in /Library/Internet Plug-Ins (the root level Library folder, not your user one). Make sure you have up to date ones -- for Flash Player, the latest is version 10.0.45.2. (You can see what version you have installed by visiting http://www.adobe.com/software/flash/about/.)
    For other issues, it may be that you have added some "enhancement" software that is not compatible with Snow Leopard. In particular, be suspicious of anything that adds an icon to the right side of the menu bar that did not come from Apple & can be command-dragged to a new position among the Apple ones.
    Also check /Library/StartupItems. It is empty by default. Anything in it may be incompatible with Snow Leopard.
    Do this much & reply with what you have found. There is more to try but this is a good start.

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