Trying to install Mavericks on Mac Pro series 4,1

Hi all,
I'm trying to install Mavericks on Mac Pro series 4,1 After downloading from App Store, when computer restarts I get grey screen with the "no entry" sign. I have checked compatibility and this model qualifies for Mavericks. Tried a clean install of 10.6.8 first, but no luck. Any ideas?
The Mac has single quad core 2.66, 6 Gb RAM, NVIDIA GeForce GT120 graphics. Four hard drives. Three Pro Tools HD cards in PCIe slots.
I also tried this with Mountain Lion, with the same results.

Didn't have any luck with removing PCI cards, BUT................ here's how I resolved the issue:
I tried making a USB stick installer. That also failed, but I noticed it couldn't find any hard drives.
I did a search about OSX installer not finding drives and found someone who had that issue and it turned out to be a conflict with the WIFI card (Atheros, not the more common Broadcom)
I checked my System Profiler and sure enough, I have the Atheros.
I just removed the WIFI card and booted into OSX Installer (it was still there after the failed install) and successfully installed Mavericks.

Similar Messages

Since installing Maverick my Mac Pro freezes at least once a day, any advice?.

Since installing OS Maverick my Mac Pro is freezing at least once a day. I can not access 'Force Quit' via shortcut and have to force a shutdown. This has occured when using Firefox, so i tried Safari and Chrome, freezes using all three. It has happened while use software as well eg, Photoshop and Word.
I have installed and run AVG Anti Virus and done a full system check to ensure that there was no virus etc.... all was clear.
I am assuming that it is a bug within Maverick as i experienced none of these problems prior to its installation.
Is anyone else experiencing these issues and does anyone have any advice on prevention?

Firstly, uninstall any anti-malware software. It isn't needed and could cause your problem. Also, avoid using Chrome which can also cause problems. Never use more than one browser at a time. Using three is asking for disaster.
I've been using Mavericks on all my computers and have had no problems, so what you describe is unlikely to be a bug. Start by uninstalling the AV software using their uninstaller. Disconnect all third-party peripherals. Then try the following:
Fixing a Mavericks Installation Problem
How to manage a failed OS X Mavericks installation | MacFixIt - CNET Reviews.
Try these in order:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
     Boot to the Recovery HD: Restart the computer and after the chime press and hold down the
     COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the computer and
     after the chime press and hold down the OPTION key until the boot manager screen appears.
     Select the Recovery HD and click on the downward pointing arrow button.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
4. Reinstall Lion/Mountain Lion, Mavericks: Reboot from the Recovery HD. Select Reinstall Lion/Mountain Lion, Mavericks from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Error message when trying to install Mavericks onto macbook pro.

Hi Been trying to install Mavericks onto my macbook pro (10.6.8) but the install fails after 3-5 minutes and I get this error message: *** WARNING: -[NSImage compositeToPoint:fromRect:operation:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.
I have tried to repair the drive through the utility function but I am told it cannot be repaired. I tried the recovery function as well but whilst I am able to select the source (external hard drive with recent time machine backup) the next screen prompts me to select the disk to restore but all it does is search for a drive and there is none there to select.
Really not sure what else to do. Please help!

Well some progress has been made so thought i would post what I did, in case someone experiences the same issue I did and maybe this will be of use to someone else...
Ended up force-shutting my macbook down then switching back on, as soon as the chime could be heard i pressed command R and kept both keys pressed until Recovery mode kicked in.
Internet Recovery came on which took approx 20 minutes (more about this here http://support.apple.com/kb/ht4718 )
Then 4 options appeared
1) recover with time machine back up
2) set up and install Mac OSX (with the Lion icon and reference to Lion for some reason, I had Snow Leopard to begin with)
3) get help online
4) repair or erase disk using disk utility
I decided to attempt to repair the drive but use the verification tool first which said the drive was fine??????!!!
Then clicked on repair disk, this took only a few minutes then it stopped after a couple lines.
While it was "repairing" the button changed to "stop repair" then changed back to "repair" so I took that to mean it had done what had to be done.
Then closed the utility screen whch prompted me to restart macbook after selected a drive to boot up from (only one option came up for me)
Did that and I was back into familiar territory and on my mac as I knew it ie snow leopard.
I did restart macbook just to make sure and it just booted up as normal, to snow leopard with the maverick install icon still showing in the dock.
Panic over. Not sure if / when I will give installing Maverick another try though....

Install Mavericks on Mac Pro 3 running Mt. Lion 10.7.5?

I am running Mt Lion 10.7.5 on a Mac Pro 3 with 2 x 3 Ghz Dual Core Intel Xeon Processor and can't install Mavericks? Should I be able to install on this machine?

If it's a 3,1 2008 model, then you can run Mavericks.
Upgrading to Mavericks
You can upgrade to Mavericks from Lion or directly from Snow Leopard. Mavericks can be downloaded from the Mac App Store for FREE.
Upgrading to Mavericks
To upgrade to Mavericks you must have Snow Leopard 10.6.8 or Lion installed. Download Mavericks from the App Store. Sign in using your Apple ID. Mavericks 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- System Requirements
    Macs that can be upgraded to OS X Mavericks
         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.

Tried to install mavericks on another mac from my purchases but not downloading

Tried to install mavericks on another mac from my purchases account, but get to say downloading, and drops installing icon into the dock, but left overnight and didnt download anything. Previous mac took 12 hrs to expected a long wait, but this didnt even give me the downloading bar and time remaining. How do I not use the one in my purchases, do I need to download under someone else apple id?

Mavericks downloads into the Applications folder, where you can install it. Some Mac App Store Troubleshooting information and how to resume a download that was interrupted; some of the information here might get you an answer. Failing that, try contacting Apple Support.

Ever since I installed Mavericks, my MacBook Pro randomly restarts.

Hi all... this is my first time here, so please be gentle ;-)
Ever since I installed Mavericks, my MacBook Pro just randomly restarts. It's been happening a lot, and I have zero idea of how to decipher the panic report. Can anyone lend an assist on this? Much thanks, in advance. Here's the report...
Tue Jul 8 21:16:03 2014
panic(cpu 2 caller 0xffffff801a8dbf5e): Kernel trap at 0xffffff801a8a3469, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x000000002e8ab028, CR3: 0x00000001cda0d08f, CR4: 0x00000000000206e0
RAX: 0x0000000000000001, RBX: 0x000000002e8ab000, RCX: 0xffffff803166d000, RDX: 0x0000000000000821
RSP: 0xffffff8124e73a80, RBP: 0xffffff8124e73ab0, RSI: 0x0000000023acea34, RDI: 0xffffff801ebac650
R8: 0xffffff8124e73b8c, R9: 0xffffff8124e73b8c, R10: 0xffffff8124e739f0, R11: 0x0000000000000200
R12: 0xffffff801ebac650, R13: 0xffffff801dab9000, R14: 0x0000000002a81000, R15: 0xffffff8030ed0a00
RFL: 0x0000000000010206, RIP: 0xffffff801a8a3469, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0x000000002e8ab028, Error code: 0x0000000000000000, Fault CPU: 0x2
Backtrace (CPU 2), Frame : Return Address
0xffffff8124e73710 : 0xffffff801a822fa9
0xffffff8124e73790 : 0xffffff801a8dbf5e
0xffffff8124e73960 : 0xffffff801a8f3456
0xffffff8124e73980 : 0xffffff801a8a3469
0xffffff8124e73ab0 : 0xffffff801a8952d1
0xffffff8124e73b50 : 0xffffff801a873628
0xffffff8124e73b70 : 0xffffff801a86c899
0xffffff8124e73bb0 : 0xffffff801a874fa2
0xffffff8124e73d50 : 0xffffff801a878864
0xffffff8124e73f20 : 0xffffff801a8dc39c
0xffffff8124e73fb0 : 0xffffff801a8f335b
BSD process name corresponding to current thread: Google Chrome He
Mac OS version:
13D65
Kernel version:
Darwin Kernel Version 13.2.0: Thu Apr 17 23:03:13 PDT 2014; root:xnu-2422.100.13~1/RELEASE_X86_64
Kernel UUID: ADD73AE6-88B0-32FB-A8BB-4F7C8BE4092E
Kernel slide: 0x000000001a600000
Kernel text base: 0xffffff801a800000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 1313246657923
last loaded kext at 1084681985049: com.apple.filesystems.smbfs 2.0.2 (addr 0xffffff7f9ccbf000, size 335872)
last unloaded kext at 743170783122: com.apple.driver.AppleIntelMCEReporter 104 (addr 0xffffff7f9ccbf000, size 32768)
loaded kexts:
com.avatron.AVExFramebuffer 1.7
com.avatron.AVExVideo 1.7
com.apple.filesystems.smbfs 2.0.2
com.apple.driver.AudioAUUC 1.60
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 100.14.15
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.2.4f1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleHDA 2.6.1f2
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleLPC 1.7.0
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.driver.AppleMikeyDriver 2.6.1f2
com.apple.driver.AppleMuxControl 3.5.26
com.apple.driver.AppleIntelHDGraphics 8.2.4
com.apple.driver.AppleIntelHDGraphicsFB 8.2.4
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.AppleMCCSControl 1.1.12
com.apple.GeForceTesla 8.2.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.4f1
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleUSBCardReader 3.4.1
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.driver.AppleIRController 325.7
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.iokit.SCSITaskUserClient 3.6.6
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.5.1
com.apple.driver.AppleFWOHCI 5.0.2
com.apple.driver.AppleUSBHub 666.4.0
com.apple.driver.AirPort.Brcm4331 700.20.22
com.apple.driver.AppleAHCIPort 3.0.0
com.apple.iokit.AppleBCM5701Ethernet 3.8.1b2
com.apple.driver.AppleUSBEHCI 660.4.0
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 217.92.1
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.driver.AppleIntelCPUPowerManagement 217.92.1
com.apple.AppleGraphicsDeviceControl 3.5.26
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.driver.DspFuncLib 2.6.1f2
com.apple.vecLib.kext 1.0.0
com.apple.iokit.IOAudioFamily 1.9.7fc2
com.apple.kext.OSvKernDSPLib 1.14
com.apple.iokit.IOSurface 91.1
com.apple.iokit.IOBluetoothFamily 4.2.4f1
com.apple.driver.AppleHDAController 2.6.1f2
com.apple.iokit.IOHDAFamily 2.6.1f2
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleGraphicsControl 3.5.26
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.driver.AppleSMBusController 1.0.11d1
com.apple.nvidia.classic.NVDANV50HalTesla 8.2.4
com.apple.nvidia.classic.NVDAResmanTesla 8.2.4
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.4f1
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.7.0d11
com.apple.driver.AppleSMC 3.1.8
com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.6
com.apple.iokit.IOUSBMassStorageClass 3.6.0
com.apple.driver.AppleUSBMultitouch 240.9
com.apple.iokit.IOUSBHIDDriver 660.4.0
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.driver.AppleUSBComposite 656.4.1
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.6.6
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.6
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IO80211Family 630.35
com.apple.iokit.IOUSBUserClient 660.4.2
com.apple.iokit.IOAHCIFamily 2.6.5
com.apple.iokit.IOEthernetAVBController 1.0.3b4
com.apple.driver.mDNSOffloadUserClient 1.0.1b5
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOUSBFamily 677.4.0
com.apple.driver.AppleEFINVRAM 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 278.11
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.AppleKeyStore 2
com.apple.driver.DiskImages 371.1
com.apple.iokit.IOStorageFamily 1.9
com.apple.iokit.IOReportFamily 23
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1

Remove "Air Display" and see whether there's an improvement.
Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.
Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.
I never install system modifications myself, and (unless otherwise specified in this comment) I don't know how to uninstall them. You'll have to do your own research to find that information.
Here are some general guidelines to get you started. Suppose you want to remove something called “BrickMyMac” (a hypothetical example.) First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickmymac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, contact the developer. While you're waiting for a response, download BrickMyMac.dmg and open it. There may be an application in there such as “Uninstall BrickMyMac.” If not, open “BrickMyMac.pkg” and look for an Uninstall button. The uninstaller might also be accessed by clicking the Customize button, if there is one.
Back up all data before making any changes.
You will generally have to restart the computer in order to complete an uninstallation. Until you do that, there may be no effect, or unpredictable effects.
If you can’t remove software in any other way, you’ll have to erase and install OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.
WARNING: Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" such as "AppCleaner" and the like that purport to remove software.

Tried to install software for canon pro 100 getting message "you can't open the application "setup.app" because it is not supported on this architecture"

tried to install software for canon pro 100 getting message "you can't open the application "setup.app" because it is not supported on this architecture"
any suggestions?

This is what Canon suggested, still doesn't work.
Thank you for your E-mail inquiry regarding your PIXMA PRO-100.
Based on the information provided in your email, I recommend you download and install the driver for your PIXMA PRO-100 from the web site listed below.
http://www.usa.canon.com/cusa/support/professional/professional_printers/destop_ printers/pixma_pro_100#DriversAndSoftware
You will be required to download and install the following:
1. PRO-100 series Mini Master Setup (OS X 10.5/10.6/10.7/10.8) (under Drivers)
Should you require further assistance, please feel free to email us or visit our customer support website at http://www.canon.ca
still receiving Alert This software is not supported by your computer (powerPC-based Macintosh)
Also received error You can't open the application "Setup.app" because it is not supported on this architecture.
thanks for your reply A Brody.

Installed Mavericks on MacBook Pro. Now my Contacts has no records. Contacts on my iPad are OK. How can I repopulate my MacBook Contents from my iPad?.

Installed Mavericks on MacBook Pro. Now my Contacts has no records. Contacts on my iPad are OK. How can I repopulate my MacBook Contents file from my iPad?.
rbarge

This is all just a partial answer since details will depend upon how you want to do it.
Post by Zevoneer: iPod media recovery options - https://discussions.apple.com/message/11624224 - this is an older post and many of the links are also for old posts, so bear this in mind when reading them.
Commercial software utility for transferring songs from i-device to Mac - http://www.fadingred.com/senuti/
http://support.apple.com/kb/HT1848 - just media purchased from iTunes Store
You'll need to get it all onto one iTunes collection on your Mac Pro, then sync the devices to that. iTunes only lets you transfer purchases from a device, otherwise you have to use third party software.
I guess you could also look into getting iTunes Match.

WinXP Home install problems on Mac Pro

Hi,
I have a brand new Mac Pro Dual 2.66GHz. It came with a second GeForce 7300GT installed. I installed additional 2x 1GB FB DIMMs. Everything worked fine, and I installed all new updates, including the new EFI Firmware update Apple introduced yesterday. After the OS X setup was complete, I downloaded BootCamp 1.1.2 and followed the instructions to create a 30GB partition for Windows XP Home. I insert the WinXP CD and let BootCamp restart the computer. WinXP boots and the blue screen appears and a bunch of drivers get loaded. After that I get the first install screen, and on that point the keyboard is not responding anymore. I can press "return" as often as I want, the install does not start. It also not responds to F3 or R as written on the screen. Its the first time Windows gets installed on this Mac Pro. I also tried to connect the keyboard directly to the computer (before it was on the cinema display hub). I tried to remove the RAM to have only the standard 1GB RAM installed. Nothing worked.
Anyone have a hint to get this done? Thanka a lot on advance!
Marty

I already thougt about that, but Apple put a note on the page:
http://www.apple.com/support/downloads/firmwarerestorationcd12.html
"Note: This CD cannot be used to return an Intel-based Macintosh computer’s firmware to a previous version if a successful update has already been performed."
So because I did a successful fimware update, I can not go back to the old firmware! There is no way back!

Tried to install maverick but app store had 1 update for mountain lion so I installed it.it didn't restarted so I did n then it started installing mountain lion..

Tried to install maverick but app store had 1 update for mountain lion so I installed it.it didn't restarted so I did n then it started installing mountain lion.
I had 1 update for mountain lion so I did it said restart required but I got stuck in the middle of the process n yhen it said install mountain lion again.
Now what to do help me please

iCloud isn't syncing them on your phone. You simply added the email account to your phone and enabled calendar and notes syncing with the email provider, and the calendar and notes appear in the calendar and notes apps on your phone. You can do this with Gmail, Yahoo and other IMAP account. iCloud email is just another IMAP account, but syncs notes with Apple's iCloud server just as Gmail syncs notes and calendars with Google's server.
iCloud didnt' set up a non-iCloud account on your Mac. When you check Mail in System Preferences>iCloud, it only creates an iCloud email account. You can also add other email accounts to your Mac by going to System Preferences>Mail,Contacts,Calendars and clicking on the "+" sign on the bottom of the left sidebar. If you added these other email accounts to your Mac before you upgraded to Mountain Lion, these were simply maintained on your Mac after you upgraded.

ATI FirePro V9800 work with Mac OS X? Can be installed on a Mac Pro 8 Core 2011?

ATI FirePro V9800 work with Mac OS X? Can be installed on a Mac Pro 8 Core 2011?

I hv tried installed FirePRO V5800 on 2012 MAC PRO ,no luck
* hear boot chime but no display output

I'm trying to install Mavericks and got this message: You need 4.94 GB of available space to download OS X Mavericks. Remove items from your startup disk to increase available space. How do I do this?

I'm trying to install Mavericks and got this message: You need 4.94 GB of available space to download OS X Mavericks. Remove items from your startup disk to increase available space. How do I do this?

With Macs and OS X, you shouldn't let the hard drive get below 15 GBs or less of free data space.
If it does, it's time for some hard drive housecleaning.
Follow some of my tips for cleaning out, deleting and archiving data from your Mac's internal hard drive.
Have you emptied your iMac's Trash icon in the Dock?
If you use iPhoto, iPhoto has its own trash that needs to be emptied, also.
If you store images in other locations other than iPhoto, then you will have to weed through these to determine what to archive and what to delete.
If you use Apple Mail app, Apple Mail also has its own trash area that needs to be emptied, too!
Look though other Apple Mail folders like the junk mail and delete the mail that is in there. Look through your sent items folders and see there is any mail in there that can be deieted.
Delete any old or no longer needed emails and/or archive to disc, flash drives or external hard drive, older emails you want to save.
Other things you can do to gain space.
Once you have around 15 GBs regained, do a search, download and install OmniDisk Sweeper.
This app will help you locate files that you can move/archive and/or delete from your system.
STAY AWAY FROM DELETING ANY FILES FROM OS X SYSTEM FOLDER!
Look through your Documents folder and delete any type of old useless type files like "Read Me" type files.
Again, archive to disc, flash drives, ext. hard drives or delete any old documents you no longer use or immediately need.
Look in your Applications folder, if you have applications you haven't used in a long time, if the app doesn't have a dedicated uninstaller, then you can simply drag it into the OS X Trash icon. IF the application has an uninstaller app, then use it to completely delete the app from your Mac.
Download an app called OnyX for your version of OS X.
When you install and launch it, let it do its initial automatic tests, then go to the cleaning and maintenance tabs and run the maintenance tabs that let OnyX clean out all web browser cache files, web browser histories, system cache files, delete old error log files.
Typically, iTunes and iPhoto libraries are the biggest users of HD space.
move these files/data off of your internal drive to the external hard drive and deleted off of the internal hard drive.
If you have any other large folders of personal data or projects, these should be archived or moved, also, to the optical discs, flash drives or external hard drive and then either archived to disc and/or deleted off your internal hard drive.
Good Luck!

After installing Mavericks my MacBook Pro and my MacMini can't shut down, only a grey screen and finish. Must be killed by the power button. Why?

After installing Mavericks my MacBook Pro and my MacMini can't shut down, only a grey screen and finish. Must be killed by the power button. Why?
Nach der Installation von Mavericks kann ich weder das MacBook Pro (2 x 2.4 GHz) noch den MacMini (2 x 2.66 GHz) herunterfahren. Es bleibt ein dauerhafter grauer Bildschirm. Nach 20 min habe ich einen erzwungenen Neustart durchgeführt.
Ausserdem startet die Macs wesentlich langsamer als mit OS X 10.6.8.

same here... sometimes it works, most of the time it doesn't!!

My Big failure to install maverick in Macbook Pro with retina

Please I NEED HELP i bought macbook pro with retina display i tried to install mavericks but i failed at fortunately i formatted the ssd HELP ME TO INSTALL MAVERICKS.

When i was trying to clean installation it failed to complete.
At what step did it fail to complete?
How are you installing Mavericks, a usb disk, a dvd or recovery mode.

Keep getting error when trying to instal Mavericks at the stage when computer is supposed to restart?

Have tried to instal mavericks on a 2011 mac mini serveral times and keep getting a error when it gets to the reboot stage. Help needed thanks!

Have you tried un-installing, then going to Apple Downloads (http://support.apple.com/downloads/) for download /installation of QT 7.6.2?
Also - it wouldn't hurt to repair permissions before & after installation.

Trying to install Mavericks on Mac Pro series 4,1

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