Mountain Lion ATI driver missing in MacBook Pro

The ATI driver is missing with the new update for my 2011 MacBookPro. Where I can find the driver?

The ATI driver is missing with the new update for my 2011 MacBookPro. Where I can find the driver?

Similar Messages

  • HT4718 I had a copy of Mountain Lion on my late 2008 MacBook Pro, having replaced Lion which it came with. But the drive,crashed, so I replaced the drive and reinstalled Lion from the original disks I had. How do I get another copy of Mountain Lion?

    I had a copy of Mountain Lion on my late 2008 MacBook Pro, having replaced Lion which it came with. But the drive crashed, so I replaced the drive and reinstalled Lion from the original disks I had. How do I get another copy of Mountain Lion?

    A 2008 Mac won't have originally shipped with Lion. You need to install 10.6.8 on the computer, log into the Mac App Store with the Apple ID you used to purchase Mountain Lion, click on the Purchases tab, and download it.
    (121465)

  • Mountain lion won't install on macbook pro 3,1

    We have a MacBook Pro  version 3,1 computer with 10.6.8 running.
    Plenty of disc left, 2 Gb RAM.
    The install process goes in a loop, from app store to www.apple.com/osx to pushing the "upgrade" button and back to the app store page.
    I'm not really a Mac kind of person, it can tell.
    I ran a hard disk utility to check and correct permissions but it didn't help.
    any thoughts out there?  I just want to run lightroom 5 and it needs 10.7 or better.
    Can I buy 10.7 someplace?
    Thanks
    Darrell

    Hello darrellsmith,
    While i currently have no solution or suggestion for your problem, i would like to mention that even though Mountain Lion technically supports your model MacBook Pro, i advise against upgrading to mountain lion. It will put significant strain on your system resources and most tasks will perform very slow. If you really do need Mountain Lion, at least upgrade your RAM to 4GB. I know that 2GB is the minimum requirements but you'll lose those 2GB by just booting up and starting Safari. Add the software you want to use on top of that and your performance will be severely impacted.
    Also, make sure you have a good backup of all your data. Upgrading an older system and skipping a major release in the process can create some issues or bring issues to light that you already had but just were not aware of.
    A possible solution could be to create a bootable installer on an external drive, instructions can be found here.
    For your system, OS X 10.6.8 would be the recommended OS and will give the smoothest performance. You will, as you've noticed, be limited to the applications you can run.

  • I downloaded Mountain Lion in my  i have macbook pro retina display last month.  but I don't get airplay the option on my macbook.  I went to display preferences, but the airplay is not available.  What is the next step?

    I downloaded Mountain Lion in my  i have macbook pro retina display last month.  but I don't get airplay the option on my macbook.  I went to display preferences, but the airplay is not available.  What is the next step?

    You also need:
    Apple TV (2nd or 3rd generation) with software update v5.0 or later.

  • In mountain lion does the late 2011 macbook pro back up while it is asleep

    In Mountain lion does the late 2011 macbook pro back up while it is asleep?

    No. No computer backs up while asleep.

  • When updating mountain lion 10.8.4 on Macbook Pro Retina animations became choppy will there be another update to fix this ?

    When updating mountain lion 10.8.4 on Macbook Pro Retina animations became choppy will there be another update to fix this ?

    Reset PRAM.  http://support.apple.com/kb/PH4405
    Start up in Safe Mode
    http://support.apple.com/kb/PH11212
    Repair Disk
    Steps 1 through 7
    http://support.apple.com/kb/PH5836

  • How well will Mountain Lion run on the following MacBook Pro?

    Thinking about biting the bullet and upgrading to Mountain Lion on my MacBook Pro. My specs are as follows:
    MacBook Pro 15"
    (Late 2008 model MacBookPro5,1)
    Intel core 2 duo 2.53Ghz
    8GB RAM
    1TB HD with 390GB free
    Mac OS X 10.6.8
    So, how well will Mountain Lion run on this configuration? Currently I'm finding my computer annoyingly slow, so am wondering whether an upgrade was worth trying or not?
    Any advice would be most appreciated!
    Thanks!
    Joe.

    Sorry, I should have been clearer - that's what I was thinking, which is why I was asking the question. I thought that if I was going to all the effort of a reformat etc that I should just upgrade to Mountain Lion while I was at it, but didn't want to do that if it was going to run really slowly anyway and then have to go through it all again to go back to Snow Leopard.
    etresoft wrote:
    .... Mountain Lion should run fine on that machine.
    So, have you had any personal experience of Mountain Lion running fine on this MacBook Pro? I know that officially it will run, but I'm wondering about the "real life" experience of it running on this model.
    Anyone out there able to share their expeience?

  • TS3638 mountain lion v10.8 for my macbook pro.

    I have a receipt for my recent purchase of mountain lion v10.8 for my macbook pro. I cannot find it anywhere to download. It did not download automatically at the time of purchase. What shall I do?

    From the App Store menu bar top of your screen click Store > Sign In
    Now type   Mountain Lion   in the search field top right corner of the window then press Enter or Return on your keyboard.
    Click where you see:  Download

  • Old Mac running Mountain Lion 'sees' Canon IP5000, new MacBook pro will not. No driver available from canon. Is there a way of transfering whatever is working from old mac to new?

    I have two older macs running Mountain Lion that have been upgraded over the years from Leopard. They have continued to be able to print to a Canon IP5000 and use a driver that is fully functional. On the new MacBook Pro, the printer is found, but no driver is available for Mountain Lion from apple or Canon. Is there a way of getting the driver info from the old mac so that it will work on the new one?

    Sorry, it says "New Event," not "New Entry." My bad.

  • Mountain Lion crashes regularly on my MacBook Pro (2010)

    Hi guys,
    I am really frustrated as my MacBook Pro crashes almost twice a day since I updated to Mountain Lion. Either I doesn't wake up when it's in Sleep Mode (I have to restart it via the on/off switch) or it just crashes, while I am working, showing a grey screen.
    After the last crash I've copied the report, which is sent to Apple:
    Interval Since Last Panic Report:  241965 sec
    Panics Since Last Report:          4
    Wed Oct  3 10:17:44 2012
    panic(cpu 1 caller 0xffffff80074b7bd5): Kernel trap at 0xffffff800781c974, type 14=page fault, registers:
    CR0: 0x000000008001003b, CR2: 0x00000000000000b8, CR3: 0x000000000a170000, CR4: 0x0000000000000660
    RAX: 0x0000000000000001, RBX: 0xffffff8020727328, RCX: 0xffffff801b030000, RDX: 0xffffff80ef2b3de8
    RSP: 0xffffff80ef2b3de8, RBP: 0xffffff80ef2b3e20, RSI: 0x00000000000000b8, RDI: 0x0000000000000001
    R8:  0x0000000000000000, R9:  0x00000000000003ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff
    R12: 0x0000000000000014, R13: 0x0000000000000371, R14: 0xffffff801fab5700, R15: 0xffffff801b974008
    RFL: 0x0000000000010206, RIP: 0xffffff800781c974, CS:  0x0000000000000008, SS:  0x0000000000000010
    Fault CR2: 0x00000000000000b8, Error code: 0x0000000000000002, Fault CPU: 0x1
    Backtrace (CPU 1), Frame : Return Address
    0xffffff80ef2b3a80 : 0xffffff800741d626
    0xffffff80ef2b3af0 : 0xffffff80074b7bd5
    0xffffff80ef2b3cc0 : 0xffffff80074ce4ed
    0xffffff80ef2b3ce0 : 0xffffff800781c974
    0xffffff80ef2b3e20 : 0xffffff7f8978fd54
    0xffffff80ef2b3e60 : 0xffffff7f897922f1
    0xffffff80ef2b3f20 : 0xffffff800778801b
    0xffffff80ef2b3f60 : 0xffffff800743dcde
    0xffffff80ef2b3fb0 : 0xffffff80074b26b7
          Kernel Extensions in backtrace:
             com.apple.nke.asp_tcp(7.0)[78FAA01C-ABC4-3AD3-8D9A-6187F7911E1A]@0xffffff7f8978 a000->0xffffff7f89796fff
    BSD process name corresponding to current thread: kernel_task
    Mac OS version:
    12C54
    Kernel version:
    Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
    Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
    Kernel slide:     0x0000000007200000
    Kernel text base: 0xffffff8007400000
    System model name: MacBookPro7,1 (Mac-F222BEC8)
    System uptime in nanoseconds: 6073063703698
    last loaded kext at 6069268948729: com.rogueamoeba.InstantOn 5.0.0 (addr 0xffffff7f89995000, size 126976)
    last unloaded kext at 5935661683810: com.rogueamoeba.InstantOn 5.0.0 (addr 0xffffff7f89977000, size 122880)
    loaded kexts:
    com.rogueamoeba.InstantOn 5.0.0
    com.sophos.kext.sav 8.0.4
    com.parallels.kext.prl_vnic 7.0 15106.786747
    com.parallels.kext.prl_netbridge 7.0 15106.786747
    com.parallels.kext.prl_hid_hook 7.0 15106.786747
    com.parallels.kext.prl_hypervisor 7.0 15106.786747
    com.parallels.kext.prl_usb_connect 7.0 15106.786747
    com.Cycling74.driver.Soundflower 1.5.3
    at.obdev.nke.LittleSnitch 3854
    com.apple.filesystems.smbfs 1.8
    com.apple.filesystems.afpfs 10.0
    com.apple.nke.asp_tcp 7.0.0
    com.apple.driver.AppleBluetoothMultitouch 75.15
    com.apple.driver.AppleHWSensor 1.9.5d0
    com.apple.driver.AudioAUUC 1.60
    com.apple.iokit.IOUserEthernet 1.0.0d1
    com.apple.iokit.IOBluetoothSerialManager 4.0.9f33
    com.apple.Dont_Steal_Mac_OS_X 7.0.0
    com.apple.driver.AGPM 100.12.69
    com.apple.filesystems.autofs 3.0
    com.apple.driver.AppleMikeyHIDDriver 122
    com.apple.driver.AppleHDA 2.3.1f2
    com.apple.driver.SMCMotionSensor 3.0.2d6
    com.apple.driver.AppleSMCLMU 2.0.2d0
    com.apple.driver.AppleMikeyDriver 2.3.1f2
    com.apple.driver.ApplePolicyControl 3.2.11
    com.apple.driver.AppleLPC 1.6.0
    com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
    com.apple.driver.AppleBacklight 170.2.3
    com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.0.9f33
    com.apple.driver.AppleUpstreamUserClient 3.5.10
    com.apple.driver.AppleMCCSControl 1.0.33
    com.apple.GeForce 8.0.0
    com.apple.driver.AppleUSBTCButtons 235.4
    com.apple.driver.AppleIRController 320.15
    com.apple.driver.AppleUSBTCKeyboard 235.4
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
    com.apple.BootCache 34
    com.apple.driver.AppleUSBCardReader 3.1.0
    com.apple.iokit.SCSITaskUserClient 3.5.1
    com.apple.driver.XsanFilter 404
    com.apple.iokit.IOAHCIBlockStorage 2.2.2
    com.apple.iokit.AppleBCM5701Ethernet 3.2.5b3
    com.apple.driver.AirPort.Brcm4331 602.15.22
    com.apple.driver.AppleSmartBatteryManager 161.0.0
    com.apple.driver.AppleUSBHub 5.2.5
    com.apple.driver.AppleFWOHCI 4.9.6
    com.apple.driver.AppleAHCIPort 2.4.1
    com.apple.driver.AppleUSBOHCI 5.2.5
    com.apple.driver.AppleUSBEHCI 5.4.0
    com.apple.driver.AppleEFINVRAM 1.6.1
    com.apple.driver.AppleRTC 1.5
    com.apple.driver.AppleHPET 1.7
    com.apple.driver.AppleACPIButtons 1.6
    com.apple.driver.AppleSMBIOS 1.9
    com.apple.driver.AppleACPIEC 1.6
    com.apple.driver.AppleAPIC 1.6
    com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0
    com.apple.nke.applicationfirewall 4.0.39
    com.apple.security.quarantine 2
    com.apple.driver.AppleIntelCPUPowerManagement 196.0.0
    com.apple.security.SecureRemotePassword 1.0
    com.apple.driver.IOBluetoothHIDDriver 4.0.9f33
    com.apple.driver.AppleMultitouchDriver 235.28
    com.apple.iokit.IOSurface 86.0.3
    com.apple.iokit.IOSerialFamily 10.0.6
    com.apple.iokit.IOBluetoothFamily 4.0.9f33
    com.apple.kext.triggers 1.0
    com.apple.driver.DspFuncLib 2.3.1f2
    com.apple.iokit.IOAudioFamily 1.8.9fc10
    com.apple.kext.OSvKernDSPLib 1.6
    com.apple.iokit.IOFireWireIP 2.2.5
    com.apple.driver.AppleHDAController 2.3.1f2
    com.apple.iokit.IOHDAFamily 2.3.1f2
    com.apple.driver.AppleSMBusPCI 1.0.10d0
    com.apple.driver.AppleSMC 3.1.4d2
    com.apple.driver.IOPlatformPluginLegacy 1.0.0
    com.apple.driver.IOPlatformPluginFamily 5.2.0d16
    com.apple.driver.AppleGraphicsControl 3.2.11
    com.apple.driver.AppleBacklightExpert 1.0.4
    com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.0.9f33
    com.apple.driver.AppleSMBusController 1.0.10d0
    com.apple.nvidia.nv50hal 8.0.0
    com.apple.NVDAResman 8.0.0
    com.apple.iokit.IONDRVSupport 2.3.5
    com.apple.iokit.IOGraphicsFamily 2.3.5
    com.apple.driver.AppleUSBHIDKeyboard 165.5
    com.apple.driver.AppleHIDKeyboard 165.5
    com.apple.driver.AppleUSBMultitouch 235.7
    com.apple.iokit.IOUSBHIDDriver 5.2.5
    com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.1
    com.apple.iokit.IOUSBMassStorageClass 3.5.0
    com.apple.driver.AppleUSBMergeNub 5.2.5
    com.apple.driver.AppleUSBComposite 5.2.5
    com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.1
    com.apple.iokit.IOBDStorageFamily 1.7
    com.apple.iokit.IODVDStorageFamily 1.7.1
    com.apple.iokit.IOCDStorageFamily 1.7.1
    com.apple.iokit.IOAHCISerialATAPI 2.5.0
    com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.1
    com.apple.iokit.IOEthernetAVBController 1.0.2b1
    com.apple.iokit.IO80211Family 500.15
    com.apple.iokit.IONetworkingFamily 3.0
    com.apple.iokit.IOUSBUserClient 5.2.5
    com.apple.iokit.IOFireWireFamily 4.5.5
    com.apple.iokit.IOAHCIFamily 2.2.1
    com.apple.iokit.IOUSBFamily 5.4.0
    com.apple.driver.NVSMU 2.2.9
    com.apple.driver.AppleEFIRuntime 1.6.1
    com.apple.iokit.IOHIDFamily 1.8.0
    com.apple.iokit.IOSMBusFamily 1.1
    com.apple.security.sandbox 220
    com.apple.kext.AppleMatch 1.0.0d1
    com.apple.security.TMSafetyNet 7
    com.apple.driver.DiskImages 344
    com.apple.iokit.IOStorageFamily 1.8
    com.apple.driver.AppleKeyStore 28.21
    com.apple.driver.AppleACPIPlatform 1.6
    com.apple.iokit.IOPCIFamily 2.7.1
    com.apple.iokit.IOACPIFamily 1.4
    com.apple.kec.corecrypto 1.0
    Model: MacBookPro7,1, BootROM MBP71.0039.B0E, 2 processors, Intel Core 2 Duo, 2.66 GHz, 8 GB, SMC 1.62f6
    Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
    Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353237334348302D4346382020
    Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353237334348302D4346382020
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.98.81.22)
    Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Serial ATA Device: ST9320325ASG, 320.07 GB
    Serial ATA Device: MATSHITADVD-R   UJ-898
    USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0x26400000 / 3
    USB Device: Apple Keyboard, apple_vendor_id, 0x0250, 0x26420000 / 4
    USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0x26100000 / 2
    USB Device: iPhone, apple_vendor_id, 0x12a0, 0x24100000 / 3
    USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0x24600000 / 2
    USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x06600000 / 4
    USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8213, 0x06610000 / 5
    USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x06500000 / 3
    USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0237, 0x06300000 / 2
    Can anybody please give me a hint? I cannot completely reinstall Mountain Lion as I am currently writing on my final thesis...
    Thanks so much,
    downundersurfer

    I would start by removing whatever application you are using from Rogue Amoeba. Audio Hijack has caused issues in the past so if that's the app you have from Rogue, then uninstall it for a while to see if this helps to stop the crashes.

  • No audio after Mountain Lion 10.8.3 update Macbook Pro Mid 2009

    A few days ago I downloaded some updates for Mountain Lion on my Macbook Pro Mid 2009. After that there is no sound and internal speakers are not listed as an output device. The startup sound is still working (I would guess it uses the same speakers?) but nothing else makes a sound through the speakers. Also headphones are working. I'm not 100% sure if my OS version vas 10.8.2 before the update or not.
    I have tried to input the headphones in and out many times to make sure that no microswitches are stuck. Also I have reset SMC and NVRAM/PRAM and reinstalled Mountain Lion. I even installed Lion (10.7.0) to be sure but it still won't work.
    Any help would be appreciated.

    Make a "Genius" appointment at an Apple Store.
    Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
    Keeping your confidential data secure during hardware repair
    *An SSD doesn't need to be zeroed.

  • Mountain lion update slowed down my macbook pro

    hey guys,
    I just updated to mountain lion
    however, after the installation, my macbook pro has been noticably slow.
    slow booting, slow when operating installed programs, chrome/safari got slowed down as well.
    Also it freezes for couple of seconds and i was wondering why.
    If any of u r experiencing same problems or know how to fix it please kindly let me know!
    Thank you!

    Have tried everything possible, repairing permissions etc to no avail.
    You haven't tried everything possible or you would have a solution.  If you tried the most extreme possible solution (erasing the hard drive, then reinstalling the system and nothing else) and still had the same problems, you would have discovered that you almost certainly have a hardware problem.  For some solutions that you haven't tried yet, I'll refer you to the same two links I referred sylee48 to.
    As for that article, that's an extremely unprofessional piece of writing.  They publish - as if they were fact - the conclusions of untrained, non-technical users who do not have the necessary expertise to make such conclusions.  And they concluded that these were bugs that Apple should be working on.
    In fact, this may be one of the smoothest upgrades I've seen in a while.  (Boy-oh-boy, you should have seen the screaming here for the Snow Leopard and Lion upgrades!  It's positively peaceful in this forum compared to that.)

  • No purchased Mountain Lion in Appstore with new Macbook Pro

    Hi there,
    I purchased a brand new Apple 13" Macbook Pro-3rd i5-2.5ghz two days ago. Now wanting to install an SSD drive i'm preparing by getting my OSX onto an external drive to make a clean install onto the new SSD.
    The Macbook came with 10.8.4 pre-installed, which I updated to 10.8.5, flawlessly. So, Mountain Lion pre-installed and updated, good.
    Now that I want to get Mountain Lion onto an external drive for when I go for the clean install on the SSD, I start looking for it in the appstore under my purchased apps: Mountain Lion nowhere to be found.
    I Google the problem: "Mountain Lion OSX not showing as purchased in Appstore"
    Same apple id used? Yes I did.
    "It's probably under your hidden purchases, check your account and show hidden purchases!" No it's not there as well.
    If I search the market for Mountain Lion it shows up... with a nice pricetag of 17,99 euros.
    How is this possible? I registered my Apple ID correctly, was able to update to 10.8.5 just fine, but the Mountain Lion OSX still appears as un-purchased in the Appstore, which is not letting me download it (for free..)
    Suggestions?
    Best regards,
    Sylvain

    Thank you for your clear answer! All the answers from Google I found apparently came from people that purchased Mountain Lion from the App Store instead of having it pre-installed, which got me confused.
    I purchased the Macbook new from an authorised reseller, not directly from an Apple Store. However the store is pretty big and common in Holland (www.dixons.nl) so that won't be an issue.
    So you're saying I can simple put the SSD in, boot with command+R while being connected to the internet and install through the recovery partition directly of the internet.
    Seems like a very easy system, I guess i'm just used to old fashion having the operating system on an external drive or cd in order to make a clean install.
    *Will it be a problem to leave the original HDD in alongside with the new SSD? I guess in the boot menu you can choose what to do with each drive?
    I will be using the original 500gig HDD for storage, simply installing the SSD in order to boost he performance of the Macbook.

  • How to do a fresh install of Mountain Lion after clean wipe of MacBook Pro Early 2008 version?

    Hey everyone,
    The following are my computer specs:
    MacBook Pro
    15-inch, Early 2008
    Hardware
    Overview
    Processor
    2.6 GHz Intel Core 2 Duo
    Memory
    4 GB 667 MHz DDR2 SDRAM
    L2 Cache
    6 MB
    Graphics
    NVIDIA GeForce 8600M GT 512 MB
    Software
    Mac OS X Lion 10.7.4 (11E53)
    mid 2008 - I got this laptop at the online Apple Store, configured to my specs. It came with Leopard.
    mid 2009 - I bought a Snow Leopard disk from the Apple Store and upgraded the OS directly over Leopard, with all my data still there.
    mid 2011 - I purchased the Lion download online from the Mac App Store and upgraded the OS again, directly over Snow Leopard, with all my data still there.
    mid 2012 - Now I want to upgrade to Mountain Lion. I have already purchased the Mountain Lion download online from the Mac App Store and downloaded it to my computer. Have also copied (i guess) all my files, bookmarks, iTunes library on to an external HD.
    But I haven't installed it yet because I want to first clean wipe my computer and restore it to factory settings, to the way it was when I first got it with Leopard, because its extremely slow. Doesn't even feel like that Mac I got..
    Now my problem is - I don't have the Leopard CDs that came with it, nor the iWork or iLife ones which I bought with, or the Snow Leopard one which I got later.
    I also don't see Apple offering the Lion download on the App Store anymore..so, can anyone please help me out with how I can do this?
    Another thing I want to mention is - I had my display replaced at the Apple Store late 2011 because of that defect which apparenly affected many MacBook Pros from that period.
    So was wondering if there might be any hardware issues if I downgraded all the way down to Leopard? Because at the time of the replacement, the laptop was running Lion.
    Any help is great, thanks!

    1) You don't see Apple offering Lion for download from the app store anymore because you already downloaded it to your computer. Hold down the option key then click on purchases and it should appear. I don't know why they hide it after you bought it?
         Ref: http://osxdaily.com/2011/08/02/re-download-mac-os-x-lion-from-app-store/
    2) Don't install Lion right after you download it from the app store! Make a copy and put it in a different directory first! I use this tutorial to make a bootable usb and a dvd for backup just in case. This will give you the "clean" install you are looking for.
         Ref: http://www.macworld.com/article/1165337/create_a_bootable_lion_install_drive_for _newer_macs.html

  • WiFi keeps disconnecting in Mountain Lion 10.8.2 on Macbook Pro

    I have an early i7 2011 Macbook Pro. Since upgrading to Mountain Lion 10.8.2 my WiFi keeps disconnecting. There isn't a certain time it disconnects - sometimes it works fine for a few hours, sometimes for just 10 minutes. When the connection is lost, it shows that its connected in the taskbar at the top, however when going into network preferences it shows the WiFi as turned off. In order to turn it back on I need to restart the Mac.
    I have tried the following:
    reset SMC
    delete network preferences
    create new network connection
    add DNS servers
    Add manual MTU
    Require password to turn on/off WiFi / change network (still disconnects!)
    Change order of preferred networks
    I phoned Apple Care who told me to delete the network preferences, this worked for about 5 mins and then the problem returned!
    I cannot change the router settings as I connect to my employers network. All other employees using Window machines are working fine and my iPhone connects perfectly fine also.
    Somebody please help me! I feel my only option now would to do a clean install - not ideal! Apple, please HELP.
    Merry Christmas everyone.

    Hi - I have the same problem with my MacBook Pro mid 2010 which drops the wifi connection randomly (not necessarily when I move it or the lid - see other posts on this) and then often ends up freezing when I try to investigate.
    I installed Mavericks to see if that would resolve the issue but it doesn't.
    Somebody in one of these posts suggested it might be a faulty connection between airport card and mother board... which I suppose could be caused by a jolt to the machine (mine travels as hand luggage on planes every now and then).
    I am running OS X 10.9 on a 13 inch Mid 2010 MBP with a 2.4 GHz Intel Core 2 Duo and 4 GB 1067MHz DDR3 memory.
    If anyone comes up with an answer to this PLEASE post it here so that we can all resolve our wifi dropping/freezing issues!
    Thanks

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