Update to Yosemite killed my MacBook Pro HELP!!!

I updated my MacBook Pro to Yosemite and it has dragged it down incredibly. Every time I click, open, close, type, delete, scroll and move it takes about 15 seconds to process. May not sound to long but it adds up and when it happens for everything I am doing its impossible to get anything done, feels like I have dial up again. I am rather computer illiterate so I have no idea what to do, and am afraid of accidentally destroying my Mac. Only thing I have managed to do was run a diagnostic with Etrecheck. Please HELP!!
Problem description:
i updated to Yosemite and my Mac has slowed down significantly, almost unusable, every action takes what feels like 20 seconds to respond
EtreCheck version: 2.0.11 (98)
Report generated December 1, 2014 at 10:34:41 PM EST
Hardware Information: ℹ️
  MacBook Pro (13-inch, Mid 2012) (Verified)
  MacBook Pro - model: MacBookPro9,2
  1 2.5 GHz Intel Core i5 CPU: 2-core
  4 GB RAM Upgradeable
  BANK 0/DIMM0
  2 GB DDR3 1600 MHz ok
  BANK 1/DIMM0
  2 GB DDR3 1600 MHz ok
  Bluetooth: Good - Handoff/Airdrop2 supported
  Wireless:  en1: 802.11 a/b/g/n
Video Information: ℹ️
  Intel HD Graphics 4000 -
  Color LCD 1280 x 800
System Software: ℹ️
  OS X 10.10.1 (14B25) - Uptime: 2 days 4:1:7
Disk Information: ℹ️
  APPLE HDD HTS547550A9E384 disk0 : (500.11 GB)
  S.M.A.R.T. Status: Verified
  EFI (disk0s1) <not mounted> : 210 MB
  Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
  Macintosh HD (disk1) /  [Startup]: 498.88 GB (246.64 GB free)
  Encrypted AES-XTS UnlockedConverting
  Core Storage: disk0s2 499.25 GB Online
  MATSHITADVD-R   UJ-8A8 
USB Information: ℹ️
  Apple Inc. FaceTime HD Camera (Built-in)
  Apple Computer, Inc. IR Receiver
  Apple Inc. Apple Internal Keyboard / Trackpad
  Apple Inc. BRCM20702 Hub
  Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ℹ️
  Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
  Mac App Store and identified developers
Kernel Extensions: ℹ️
  /System/Library/Extensions
  [loaded] com.logmein.driver.LogMeInSoundDriver (1.0.3 - SDK 10.5) Support
  [not loaded] com.nike.sportwatch (1.0.0) Support
Launch Agents: ℹ️
  [not loaded] com.logmein.logmeingui.plist Support
  [not loaded] com.logmein.logmeinguiagent.plist Support
  [not loaded] com.logmein.logmeinguiagentatlogin.plist Support
  [running] com.nike.nikeplusconnect.plist Support
Launch Daemons: ℹ️
  [loaded] com.adobe.fpsaud.plist Support
  [not loaded] com.logmein.logmeinblanker.plist Support
  [not loaded] com.logmein.logmeinserver.plist Support
  [invalid?] com.logmein.raupdate.plist Support
  [loaded] com.microsoft.office.licensing.helper.plist Support
User Launch Agents: ℹ️
  [loaded] com.adobe.ARM.[...].plist Support
  [loaded] com.google.keystone.agent.plist Support
  [running] com.spotify.webhelper.plist Support
User Login Items: ℹ️
  Garmin Express Service Application (/Applications/Garmin Express.app/Contents/Library/LoginItems/Garmin Express Service.app)
  iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
  Spotify Application (/Applications/Spotify.app)
Internet Plug-ins: ℹ️
  FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 Support
  Default Browser: Version: 600 - SDK 10.10
  AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 Support
  AdobePDFViewer: Version: 11.0.09 - SDK 10.6 Support
  Flash Player: Version: 15.0.0.239 - SDK 10.6 Support
  LogMeIn: Version: 1.0.935 - SDK 10.7 Support
  LogMeInSafari32: Version: 1.0.935 - SDK 10.7 Support
  QuickTime Plugin: Version: 7.7.3
  SharePointBrowserPlugin: Version: 14.0.0 Support
  Silverlight: Version: 4.1.10329.0 Support
  DirectorShockwave: Version: 12.0.3r133 - SDK 10.6 Support
User Internet Plug-ins: ℹ️
  Google Earth Web Plug-in: Version: 7.1 Support
3rd Party Preference Panes: ℹ️
  Flash Player  Support
Time Machine: ℹ️
  Mobile backups: OFF
  Auto backup: NO - Auto backup turned off
  Volumes being backed up:
  Macintosh HD: Disk size: 498.88 GB Disk used: 252.23 GB
  Destinations:
  G-DRIVE slim [Local]
  Total size: 499.76 GB
  Total number of backups: 16
  Oldest backup: 2012-08-10 01:44:35 +0000
  Last backup: 2014-10-04 21:12:41 +0000
  Size of backup disk: Too small
  Backup size 499.76 GB < (Disk used 252.23 GB X 3)
Top Processes by CPU: ℹ️
      2% sysmond
      1% SystemUIServer
      1% corestoraged
      1% Safari
      1% Activity Monitor
Top Processes by Memory: ℹ️
  133 MB Google Chrome
  85 MB Google Chrome Helper
  64 MB Safari
  60 MB Mail
  58 MB com.apple.WebKit.WebContent
Virtual Memory Information: ℹ️
  79 MB Free RAM
  1.41 GB Active RAM
  1.30 GB Inactive RAM
  722 MB Wired RAM
  12.49 GB Page-ins
  268 MB Page-outs

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen. Click the Clear Display icon in the toolbar. Then take one of the actions that you're having trouble with. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

Similar Messages

  • Yosemite killed my Macbook Pro

    Oh my god... I am so slow now... why, why, why did I upgrade? Mid 2010 8G memory.  I couldn't be more bummed out.  Apple has turned my Mac into a PC!  I am sick of watching the rainbow icon spin and spin and spin....zzZZZzzzZZzzZzzzz help!

    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
    The title of the Console window should be All Messages. If it isn't, select
              SYSTEM LOG QUERIES ▹ All Messages
    from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar at the top of the screen. Click the Clear Display icon in the toolbar. Then take one of the actions that you're having trouble with. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
    The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
    Please don't indiscriminately dump thousands of lines from the log into this discussion.
    Please don't post screenshots of log messages—post the text.
    Some private information, such as your name, may appear in the log. Anonymize before posting.

  • Usual problem - Yosemite killed my macbook. Please help

    Upgraded to Yosemite on 2008 macbook pro which had worked perfectly until then. Now it's unusable. Any command prompts the wheel of death and endless waiting.  Here's an EtreCheck download but I can't see anything really wrong. All your suggestions gratefully appreciated, thanks.
    Problem description:
    Macbook slowed right down after installing Yosemite
    EtreCheck version: 2.1.8 (121)
    Report generated 8 March 2015 14:28:07 GMT
    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.
    Hardware Information: ℹ️
        MacBook Pro (15-inch, Late 2008) (Technical Specifications)
        MacBook Pro - model: MacBookPro5,1
        1 2.93 GHz Intel Core 2 Duo CPU: 2-core
        4 GB RAM Upgradeable
            BANK 0/DIMM0
                2 GB DDR3 1067 MHz ok
            BANK 0/DIMM1
                2 GB DDR3 1067 MHz ok
        Bluetooth: Old - Handoff/Airdrop2 not supported
        Wireless:  en1: 802.11 a/b/g/n
        Battery Health: Normal - Cycle count 165
    Video Information: ℹ️
        NVIDIA GeForce 9400M - VRAM: 256 MB
            Color LCD 1440 x 900
        NVIDIA GeForce 9600M GT - VRAM: 512 MB
    System Software: ℹ️
        OS X 10.10.1 (14B25) - Time since boot: 37 days 10:21:44
    Disk Information: ℹ️
        Hitachi HTS723232L9SA62 disk0 : (320.07 GB)
            EFI (disk0s1) <not mounted> : 210 MB
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
            Macintosh HD (disk1) / : 318.89 GB (53.72 GB free)
                Encrypted AES-XTS Unlocked
                Core Storage: disk0s2 319.21 GB Online
        MATSHITADVD-R   UJ-868 
    USB Information: ℹ️
        Apple Inc. Built-in iSight
        Apple Inc. BRCM2046 Hub
            Apple Inc. Bluetooth USB Host Controller
        Apple Computer, Inc. IR Receiver
        Apple, Inc. Apple Internal Keyboard / Trackpad
    Configuration files: ℹ️
        /etc/hosts - Count: 2
    Gatekeeper: ℹ️
        Mac App Store and identified developers
    Kernel Extensions: ℹ️
            /System/Library/Extensions
        [not loaded]    com.NovatelWireless.driver.NovatelWirelessUSBCDCECMControl (3.0.9) [Click for support]
        [not loaded]    com.NovatelWireless.driver.NovatelWirelessUSBCDCECMData (3.0.9) [Click for support]
        [not loaded]    com.ZTE.driver.ZTEUSBCDCACMData (1.3.1) [Click for support]
        [not loaded]    com.ZTE.driver.ZTEUSBMassStorageFilter (1.3.1) [Click for support]
        [not loaded]    com.novamedia.driver.IceraUSB_MSD_Bypass (1.3.0) [Click for support]
        [not loaded]    com.novatelwireless.driver.3G (3.0.9) [Click for support]
        [not loaded]    com.novatelwireless.driver.DisableAutoInstall (2.0.6) [Click for support]
        [not loaded]    com.option.driver.Option72 (2.15.0) [Click for support]
        [not loaded]    com.option.driver.OptionHS (3.26.0) [Click for support]
        [not loaded]    com.option.driver.OptionMSD (1.21.0) [Click for support]
        [not loaded]    com.option.driver.OptionQC (1.11.0) [Click for support]
        [not loaded]    com.vodafone.driver (3.0.9) [Click for support]
        [not loaded]    com.wacom.kext.pentablet (5.2.0) [Click for support]
        [not loaded]    com.zte.driver.cdc_ecm_qmi (1.0.0d1) [Click for support]
        [not loaded]    com.zte.driver.cdc_usb_bus (1.0.0d1) [Click for support]
        [not loaded]    de.novamedia.driver.NMLGEDriver (3.2.10) [Click for support]
        [not loaded]    de.novamedia.driver.NMSamsung (0.0.2) [Click for support]
        [not loaded]    de.novamedia.driver.NMSmartplugSCSIDevice (1.0.1) [Click for support]
        [not loaded]    de.novamedia.oem.vodafone.vtp.huawei.cdc (0.0.2) [Click for support]
        [not loaded]    net.pocketmac.driver.BlackberryUSB (3.0.12) [Click for support]
        [not loaded]    net.pocketmac.driver.BlackberryUSBDev (3.0.12) [Click for support]
            /System/Library/Extensions/NMHuaweiPhonesVTPCDC.kext/Contents/Resources
        [not loaded]    de.novamedia.driver.NMUSBCDCACMData.VTP (3.2.6) [Click for support]
            /System/Library/Extensions/NMLGEDriver.kext/Contents/PlugIns
        [not loaded]    de.novamedia.driver.NMLGEUSBCDCACMControl (3.1.9) [Click for support]
        [not loaded]    de.novamedia.driver.NMLGEUSBCDCACMData (3.1.9) [Click for support]
            /System/Library/Extensions/NMSamsungDriver_106.kext/Contents/PlugIns
        [not loaded]    de.novamedia.driver.NMUSBCDCACMControl (3.2.12) [Click for support]
        [not loaded]    de.novamedia.driver.NMUSBCDCACMData (3.2.12) [Click for support]
            /System/Library/Extensions/NovatelWireless3G.kext/Contents/Plugins
        [not loaded]    com.novatelwireless.driver.3GData (3.0.9) [Click for support]
            /System/Library/Extensions/Vodafone.kext/Contents/Plugins
        [not loaded]    com.vodafone.driver.Data (3.0.9) [Click for support]
    Problem System Launch Daemons: ℹ️
        [failed]    com.apple.sessionlogoutd.plist [Click for details]
    Launch Agents: ℹ️
        [failed]    com.wacom.pentablet.plist [Click for support] [Click for details]
        [running]    de.novamedia.VodafoneDeviceObserver.plist [Click for support]
    Launch Daemons: ℹ️
        [loaded]    com.adobe.fpsaud.plist [Click for support]
        [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
    User Launch Agents: ℹ️
        [loaded]    com.adobe.ARM.[...].plist [Click for support]
        [loaded]    com.google.keystone.agent.plist [Click for support]
        [not loaded]    jp.co.canon.Inkjet_Extended_Survey_Agent.plist [Click for support]
    User Login Items: ℹ️
        Scroll Reverser    Application  (/Users/[redacted]/Documents/Scroll Reverser.app)
        TomTomHOMERunner    Application  (/Users/[redacted]/Library/Application Support/TomTom HOME/TomTomHOMERunner.app)
        iTunesHelper    UNKNOWN  (missing value)
        Safari    Application Hidden (/Applications/Safari.app)
        Skype    Application  (/Users/[redacted]/.Trash/Skype.app)
        Canon IJ Network Scanner Selector2    UNKNOWN Hidden (missing value)
        VMCStatusMenu    Application  (/Applications/Vodafone Utilities/VMCStatusMenu.app)
        Mac_SwapperDemon    Application Hidden (/Library/Application Support/Birdstep/Mac_SwapperDemon.app)
        AutoLaunchApp    Application  (/Applications/3Connect/3Connect.app/Contents/Resources/AutoLaunchApp.app)
        Dropbox    Application  (/Applications/Dropbox.app)
        BambooCore    Application  (/Library/Application Support/Wacom/BambooCore.app)
        Launch Nikon Message Center 2    Application  (/Applications/Nikon Software/Nikon Message Center 2/Nikon Message Center 2.app/Contents/SharedSupport/Launch Nikon Message Center 2.app)
        TrapsMonitor    Application  (/Library/Application Support/hp/laserjet MFP/Trap Monitor/TrapsMonitor.app)
    Internet Plug-ins: ℹ️
        Google Earth Web Plug-in: Version: 6.1 [Click for support]
        Default Browser: Version: 600 - SDK 10.10
        Flip4Mac WMV Plugin: Version: 2.3.8.1 [Click for support]
        Silverlight: Version: 4.0.51204.0 [Click for support]
        FlashPlayer-10.6: Version: 16.0.0.296 - SDK 10.6 [Click for support]
        Flash Player: Version: 16.0.0.296 - SDK 10.6 Outdated! Update
        QuickTime Plugin: Version: 7.7.3
        CitrixICAClientPlugIn: Version: 11.1.0 [Click for support]
        iPhotoPhotocast: Version: 7.0
        AdobePDFViewer: Version: 9.5.5 [Click for support]
        CANONiMAGEGATEWAYDL: Version: 2.1.0.1 [Click for support]
        SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Click for support]
        CANONiMAGEGATEWAYLI: Version: 2.1.0.1 [Click for support]
        EPPEX Plugin: Version: 3.0.5.0 [Click for support]
    User internet Plug-ins: ℹ️
        WebEx64: Version: 1.0 - SDK 10.5 [Click for support]
        WebEx: Version: 1.0 [Click for support]
        CitrixOnlineWebDeploymentPlugin: Version: 1.0 [Click for support]
        RealPlayer Plugin: Version: Unknown
    3rd Party Preference Panes: ℹ️
        Citrix online plug-in  [Click for support]
        Flash Player  [Click for support]
        Flip4Mac WMV  [Click for support]
        MacFUSE  [Click for support]
    Time Machine: ℹ️
        Skip System Files: NO
        Auto backup: YES
        Volumes being backed up:
            Macintosh HD: Disk size: 318.89 GB Disk used: 265.17 GB
        Destinations:
            Untitled 1 [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 265.17 GB X 3)
    Top Processes by CPU: ℹ️
            56%    update_dyld_shared_cache
             6%    WindowServer
             6%    Activity Monitor
             3%    Dropbox
             3%    systemstats
    Top Processes by Memory: ℹ️
        832 MB    update_dyld_shared_cache
        228 MB    softwareupdated
        88 MB    Dropbox
        77 MB    ocspd
        64 MB    installd
    Virtual Memory Information: ℹ️
        56 MB    Free RAM
        1.49 GB    Active RAM
        1.47 GB    Inactive RAM
        647 MB    Wired RAM
        27.27 GB    Page-ins
        558 MB    Page-outs
    Diagnostics Information: ℹ️
        Mar 8, 2015, 02:22:57 PM    /Library/Logs/DiagnosticReports/Microsoft Word_2015-03-08-142257_[redacted].hang

    When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.  
    These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad and start typing the name.
    The title of the Console window should be All Messages. If it isn't, select
              SYSTEM LOG QUERIES ▹ All Messages
    from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar at the top of the screen.
    Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
    Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
    Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
    The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
    Please don't indiscriminately dump thousands of lines from the log into this discussion.
    Please don't post screenshots of log messages—post the text.
    Some private information, such as your name, may appear in the log. Anonymize before posting.

  • Yosemite made my MacBook Pro so slow !! Need help ? what is the solution?

    Yosemite made my MacBook Pro so slow !! Need help ? what is the solution?

    I've ran a benchmark on my Mac (iMac early 2009). Performance of Yosemite in general was about the same as Mavericks. But that can be different on other Mac's of course. Safari is mostly a bit slower. It's recommended you clean your old internet-caches and then restart Safari. (you can use a little app called CCleaner to do that). That might make a difference. Speed-issues are usually solved in the first and second update of OS X.

  • I want to update to LION,on my Macbook Pro duo core, (october 2006) because Adobe CC needs at least that. I know my computer is old, but works perfect to me and I do not want to stay in Adobe CS6 since I have access to Adobe Cloud CC. Please help.

    I want to update to LION,on my Macbook Pro CORE 2 DUO, (october 2006) because Adobe CC needs at least that. I know my computer is old, but works perfect to me and I do not want to stay in Adobe CS6 since I have access to Adobe Cloud CC. Please help.
    I probably dont want to go to Mountain Lion either because I've heard that it will slow down my computer, So, Lion 10.7 will be the perfect OS X for me.
    I have ne newest release of Snow Leopard installed and works great.
    Thank you ALL for your help.

    you will be ok updating to the new software but there will be some trade off. i have 3 macbooks 2006 that are all running the latest versions.
    some of the trade off are
    1-2 less of battery life
    slow wake ups from sleep
    slower start up time about 30-40 seconds longer then what you have now
    the operating system will use high % of your processer while idealing
    these are not the things you want to hear about a new os compared to the old one but this is how it is even with a new macbook pro. but it's not the end of the world. just make sure you have at least more then 2GB of ram and have a good harddrive and you will be ok.

  • I am in the process of updating the os of my macbook pro and have installed from the snow leopard dvd and did the 10.6.8 combo v1.1 as well and wis to update further but i now cannot get preview so i am concerned about going forward. how to get prev

    I am updating the OS on my MacBook Pro from 10.5.8.  I have installed 10.6.8 and the 10.6.8 combo v1.1.  I cannot open my older version of Preview and do not appear to have a newer version which i thought would be on the Snow Leopard dvd.  How can I get the correct version of Preview and is it advisable to upgrade to OS7 andOS8?

    It is always installed with whatever new version of OS X is installed or appropriate updates. Since you plan to go forward your choice depends on your model. I would urge you to perform a clean install instead of continuing the upgrade path which may interject incompatibilities.
    Upgrading to Yosemite
    You can upgrade to Yosemite from Lion or directly from Snow Leopard. Yosemite can be downloaded from the Mac App Store for FREE.
    Upgrading to Yosemite
    To upgrade to Yosemite you must have Snow Leopard 10.6.8 or Lion installed. Download Yosemite from the App Store. Sign in using your Apple ID. Yosemite is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
        OS X Mavericks/Yosemite - System Requirements
          Macs that can be upgraded to OS X Yosemite
             1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later
             2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later
             3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later
             4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later
             5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later
             6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later
             7. Xserve (Early 2009) - Model Identifier 3,1 or later
    To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
         Are my applications compatible?
             See App Compatibility Table - RoaringApps.
    Upgrading to Lion
    If your computer does not meet the requirements to install Yosemite, it may still meet the requirements to install Lion.
    You can purchase Lion at the Online Apple Store. The cost is $19.99 (as it was before) plus tax.  It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
         Lion System Requirements
           1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
               or Xeon processor
           2. 2GB of memory
           3. OS X v10.6.6 or later (v10.6.8 recommended)
           4. 7GB of available space
           5. Some features require an Apple ID; terms apply.
    Before attempting a clean install you want to first download the appropriate installer application from the App Store. It will download into your Applications folder. You need to make a copy of it in your Downloads folder so you can make a bootable USB flash drive:
    Make Your Own Mavericks, Mountain/Lion Installer
    After downloading the installer you must first save the Install Mac OS X application. After the installer downloads DO NOT click on the Install button. Go to your Applications folder and make a copy of the installer. Move the copy into your Downloads folder. Now you can click on the Install button. You must do this because the installer deletes itself automatically when it finishes installing.
       2. Get a USB flash drive that is at least 8 GBs. Prep this flash drive as follows:
    Open Disk Utility in your Utilities folder.
    After DU loads select your flash drive (this is the entry with the mfgr.'s ID and size) from the leftside list. 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.
    Select the volume you just created (this is the sub-entry under the drive entry) from the left side list.
    Click on the Erase tab in the DU main window.
    Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
    Click on the Erase button. The format process can take up to an hour depending upon the flash drive size.
    Use DiskMaker X to put your installer clone onto the USB flash drive.
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    Hello krosebear,
    Thank you for using Apple Support Communities. 
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    If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network - Apple Support
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    Thanks clintonfrombirmingham...
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    Hi Timia,
    If you are using Safari as a web browser :-
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      Open Google Chrome.
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    Let me know if you still experience any issue.
    Regards,
    Aadesh

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    Maybe this.
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    OS X: What is Safe Boot, Safe Mode?
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    OS X: About OS X Recovery - Apple Support
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    OS X Yosemite: Reinstall OS X
    This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum.

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    Ari343 wrote:
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    Ciao.

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    So it is powering on. You did not state that before. In that case:
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    Also see this if above doesn't work:
    Install OS X 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:
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    Erase the hard drive:
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      4. Quit DU and return to the main menu.
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