My MacBook Pro is not booting when I switch it on

When I switch it on the screen opens and a sign of loading comes on but never finish loading

Try resetting the SMC.
Barry

Similar Messages

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    Hey everyone,
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    As an additional comment a WD 500GB Scorbio Blue replaced the original hard drive about a years ago. I had no problems with the hard drive initally and I can't really believe that there is a problem with the hardware, I mean, why does Windows start and Mac OS doesn't?
    Thanks for your time and help!
    Marco

    This isn't a direct answer to your issue but have you considered installing Wine so you can run the occasional windows app directly in OSX? It's a much more elegant solution IMHO. This avoids restarting all the time with Bootcamp and avoids crashing all the time (and the security risks) with Windows running.

  • My Mid 2010 MacBook Pro will not boot

    My Mid 2010 MacBook Pro will not boot regularly, in safe mode, in recovery mode or from original OS DVD. Is this the logic board?
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    Hi JRC8.8,
    It sounds like you have been on the right track in trying to troubleshoot this issue. You may want to see if your MacBook Pro will boot directly to the Apple Hardware Test, as outlined in the following article:
    Apple Support: Using Apple Hardware Test
    http://support.apple.com/kb/ht1509
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  • Macbook Pro will not boot beyond grey screen.  System freezes.

    My Macbook Pro will not boot-up or get beyond the grey screen (with spinning gear wheel.)  I've tried all the recommended actions: resetting PRAM, disk repair, permissions repair, re-boot in safe mode etc but still the problem persists.  When viewing the safe-boot in verbose mode, the system seems to hang at the stage when it's checking the Airport & Ethernet - the last line on the page reads: "AppleBCOM5701Ethernet:   0    0    setFixedSpeed - logic error, speed any?"
    Any ideas how to fix this without doing an Archive & Install?
    I'm assuming that if I do an "Archive & Install" then I will lose all my Applications (VLC, Handbrake, MS Office for Mac etc.)  Will this actually be the case?  Will I lose them.
    Any help gratefully received.  Many thanks.

    jfromplymouth wrote: ...I'm assuming that if I do an "Archive & Install" then I will lose all my Applications (VLC, Handbrake, MS Office for Mac etc.)  Will this actually be the case?  Will I lose them...
    Archive and Install just affects the System files, so any apps you have  should still be available afterwards.  The Installer on the disk that  came  with your Mac, when you bought it, will tell you this before you  proceed.  Of course, you can always back out of the Installer if you feel chicken.
    Notwithstanding it is still necessary to backup everything.  You need to check that Time Machine is set to also backup your Applications folder.  It might be set not to do this. 
    It may not be necessary to worry about this if you have the original installer disc(s).  I think any stuff downloaded from iTunes etc can be re-downloaded.  However, it's probably quicker to get Time Machine to backup your apps if you can afford the HDD space.  It's bound to be quicker than re-downloading the stuff plus any updates.  And of course there's those Apps that you have but forgotten about.  What about them?

  • MacBook Pro will not boot

    MacBook Pro will not boot. Just get grey screen. When I hold down control + R, I get blank blue screen.

    Which model MacBook Pro do you have?
    It's COMMAND and R that will take you to your Recovery partion, not Control and R.
    If a later model, can you boot into Internet Recovery (booting whilst holding down the command, option and R keys)?
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  • How do I uninstall Yosemite please ? Since I upgraded my 2011 MacBook Pro will not boot up

    My 2011 MacBook Pro will not boot up following my upgrade to Yosemite. How do I uninstall or downgrade back to the previous version of OS please ?

    You can't downgrade or uninstall unless you first erase the drive. Try the following:
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    Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the 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.
    Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
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  • HT4718 I recently upgrade my OS and now my MacBook Pro will not boot up

    I recently upgrade my OS and now my MacBook Pro will not boot up

    Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
    Boot to the Recovery HD:
    Restart the computer and after the chime press and hold down the COMMAND and R keys until the 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.
    Repair
    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 then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.
    Reinstall Mountain Lion or Mavericks
    OS X Mavericks- Reinstall OS X
    OS X Mountain Lion- Reinstall OS X
         Note: You will need an active Internet connection. I suggest using Ethernet
                     if possible because it is three times faster than wireless.

  • HT203254 MacBook pro will not boot up?

    My 2007 MacBook pro will not boot up. Sometimes just stops booting before password screen, but other times after that. If I get to put in my password it goes on, but I either get a blank screen or partial jumbled screen. When using boot disc and run hardware test it gives a video controller error 4VDC/1/40000003. Would that make it hang up and not fully boot? I can understand it giving blank and jumbled screens.

    Means you need a new logic board. Make an appointment at an Apple store to confirm.

  • MacBook Pro will not boot up. Hardware test found no problems.

    MacBook Pro will not boot up.  Hardware test found no problems.

    Sorry. What I mean is I selected the SL boot up in the start up panel and it would not boot into the cd. The CD rom sounds like it just keeps reading with it slowly loading from grey screen to blue screen to the Block screen. Almost like it is booting into normal mode from the hard drive.
    What I can't understand is why it runs fine is Safe mode?
    Also why do I get a " this disk cannot be used to start up your computer" message on my hard drive when trying to install Lion in safe mode? Well why not it's the only hard drive in the computer?
    The first screen shot is the Tech tool showing everything passed the hardware test is safe mode.

  • Macbook PRo will not boot, MagSafe adaptor light does not work !

    Okay... so i have this issue with my MBP where it will not power up.
    The light on the magsafe does not show up at all when connected to the MBP. I have tried another magsafe but failed. I have not tried another battery so im not sure if that is wheret the fault lies.
    Ive tried the SMC reset holding the power button down for long, but still no result. However, i left the MBP disconnected from the magsafe and went out for the whole day. Came back, connected the magsafe and thought id try again. I held the power button for 10 seconds and the MBP started booting. It wasnt the normal boot im not sure if it was performing some sort of safe boot, but it was doing something, the screen turned transparent white, restarted and i could finally log in. The battery was very low so i left it on charge with magsafe.
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    This morning i wake up and its the same issue all over again. It must have stopped charging or something as i left the MBP on with magsafe connected. Now it will not turn on no matter what i do.
    If i tilt the magsafe connector at an angle i can see a dim green light but then id have to hold it in that place to see that light.
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    Hi s.cheslik,
    It seems your MacBook Pro will not boot properly and it displaying an error message. Based on the information you have provided, it appears your MacBook Pro needs to be serviced. The following link should help you get started with the process and has links with additional information on topics such as warranty and service pricing, battery replacement, and express replacement service.
    Apple - Support - Service Answer Center
    Thank you for contributing to Apple Support Communities.
    Take care,
    Bobby_D

  • MacBook Pro will not boot after software update

    MacBook Pro will not boot after doing an Apple Software Update (of course they will not help you).  MONEY, MONEY, MONEY is the name of the game.  They can cause your computer to crash and still charge you! 
    Does anyone have an answer to why my computer is showing a little gear spinning for hours?  I have tried several things with NO luck.
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    Run through the list of fixes here
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  • HT3964 My MacBook Pro will not boot up. The screen remains dark although the the comput makes the characteristic start up sound. The sleep light is showing.

    MY MacBook Pro will not boot upThe screen is dark, but the sleep light is on and it makes the characteristic start up sound.What is wrong?

    There is always the forum for MBP
    MacBook Pro
    https://discussions.apple.com/community/notebooks/macbook_pro
    https://discussions.apple.com/community/mac_os?view=discussions 
    http://www.apple.com/support/macbookpro

  • My Macbook Pro will not boot up. I can hear the sound that it has started and then goes into an infinite loop.

    My Macbook Pro will not boot up. I can hear the sound that it has started and then it goes into an infinite loop.

    What model MBP and which version of OS X? Sounds as if the hard drive may have failed. If you have an installation disc, try booting with it. If your machine came with Lion or Mountain Lion, try booting to the Recovery partition - Command and R keys held down while booting.
    Clinton

  • MacBook pro will not boot up. Blank screen with message File is possibly corrupted. Checksum does not match etc

    MacBook Pro suddenly will not boot up. Blank screen with message File is possibly corrupt. Header checksum does not match, etc

    Hi s.cheslik,
    It seems your MacBook Pro will not boot properly and it displaying an error message. Based on the information you have provided, it appears your MacBook Pro needs to be serviced. The following link should help you get started with the process and has links with additional information on topics such as warranty and service pricing, battery replacement, and express replacement service.
    Apple - Support - Service Answer Center
    Thank you for contributing to Apple Support Communities.
    Take care,
    Bobby_D

  • MacBook Pro will not boot up, stops at Apple logo

    My daughter's 3 year old MacBook Pro will not boot up. The grey screen with Apple logo comes up and it looks and sounds like it is going to boot up but after 30 seconds it goes black and turns off.  Any ideas or suggestions would be appreciated.

    The internal HDD will have to be replaced.  Since you cannot get the MBP to acces the internal HDD, you will have either use Target Disk Mode:
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    Or take out the HDD and place it in an enclosure and then connect it to the MBP via USB.  (After you have installed the new HDD and the OSX)
    You may or may not be able to get information off of the HDD.
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