My mac book pro show block sign

My MacBook pro OS X Yosemite not open first it was loding and after that shut down then it start show me block sign and send me a massage the format required and if I wanna do its say can't format and back to the block sign

Restart holding down the option/alt key and see if you have a Recovery Volume. If so, select it and reboot from it. Run Disk Utility Verify/Repair and Repair Permissions until you get no errors.  Then re-install the OS.

Similar Messages

  • My neighbour's Mac Book Pro shows up as discoverable when Bluetooth is turned on in my iPad Air.  How can I block her device?  How can I prevent her pairing with my iPad Air. I need Bluetooth on to play music over my system.

    My neighbour's Mac Book Pro shows up as discoverable in my Bluetooth list on my iPad Air.  How can I block her Bluetooth device? How can I prevent her pairing with my device?  I need Bluetooth to stream music on my Bose system.  Thanks!

    If your device is discoverable, the other BT device would try (I am not sure if that would be successful). If it was, it would appear in your system preferences>Bluetooth.
    Take a look at this re: security:
    http://support.apple.com/kb/PH10786
    This is from another Apple article:
    Use Bluetooth
    You can wirelessly transfer files between computers—even Mac to PC—using the Bluetooth File Exchange utility. You can even browse selected devices and retrieve files remotely. For extra security, you can stipulate that only trusted devices be allowed to connect to your Mac, and 128-bit over-the-air encryption is also available
    Barry
    P.S. Since I have not had the issue, I have not researched this before. Thank you for making me look into BT security
    Message was edited by: Barry Hemphill

  • On start up my Mac Book Pro shows a white screen with a spinning wheel. I have tried starting up with the Snow Leopard disk - all I get is a blue screen. I guess that this is a major repair job??????

    On start up my Mac Book Pro shows a white screen with a spinning wheel. I have tried starting up with the Snow Leopard disk - all I get is a blue screen. I guess that this is a major repair job??????

    If you have the exact same problem - take the computer to an Apple store or an AASP.  Whichever is more convenient for you.  If you have AppleCare call them!

  • Why does Mac Book Pro show your mac os z startup disk has no more space available for application memory

    Why does Mac Book Pro show your mac os z startup disk has no more space available for application memory

    Why does Mac Book Pro show your mac os z startup disk has no more space available for application memory

  • How can i share my iTunes library with my fiancee, he has new iPhone 5 I have an iPhone 4s,iPad, and Mac Book Pro. I signed on to his phone with my account and the library is in iTunes but it is not showing up in his music?

    How can i get my itunes library on my fiances' iphone 5?  I have an iphone 4s, ipad and a Mac book pro.  I thought I could have my music on up to ten different devises?  I signed in on his phone and my music is in his itunes account but it is not in his music file.

    I regret to say that you need a new computer. That G5, as good as it still is, simply cannot run the required software to be used with the latest iPhones and other software.

  • On start up my mac book pro shows a white screen with a folder with a ? in it then switches to the apple symbol with the loading bar under it but it freezes about half way any ideas

    My mac book pro on start up shows a white screen with a folder with a question mark in it then switches to the apple symbol with the loading bar under it but it freezes about half way. Only started to have problems since upgrading to yosemite any ideas.

    I do hope you have recent backup, because it look like your hard disk is failing. You can start up in Recovery Mode, and run Disk Utility to see if the disk can be fixed:  OS X: About OS X Recovery - Apple Support

  • My Mac book pro shows this grey distorted screen during startup. Any ideas?

    Looks like the above for a few minutes but then will go to the login screen like normal and work perfectly.

    Reset PRAM.  http://support.apple.com/kb/PH4405
    Best.

  • HT201402 My Mac Book Pro shows 103GB storage as "Other". What is this and can I reduce it?

    How can I reduce the storage shown as "other"?

    When Spotlight runs, it categorizes the files it indexes into the categories you're seeing (e.g., movies, photos, apps) and anything that doesn't fit into one of the categories goes into "Other." You can see what might be included in this discussion and what to do about it.

  • Mac Book Pro showing pattern of pink and white.

    When I open my computer I have a pink and white pattern and it is frozen. Does anyone know how to correct this.

    You might find the answer to colum on the right

  • MAC BOOK PRO WHITE SCREEN

    My Mac book pro showing white screen, what can i do?

    Try the suggestions in this support article
    http://support.apple.com/kb/PH11044
    Also, see "More like this" at the right side of this page -->

  • Mac Book Pro (15", late 2009) Can't Enter Password

    Suddenly, our new Mac Book Pro will not sign on to our home airport network.
    Whenever we try to activate airport and log on, we receive the same error message: password invalid.
    We have an AirPort Extreme (802.11n) using WPA2 Personal. We completely reset it after this problem arose, but the problem persists.
    Our other Mac Book Pro logs on with no problem, as does our iMac.
    All the software on the problem Mac Book Pro is up to date, as is the firmware on the Airport Extreme.
    We are at our wits end. Ideas?
    Thanks.

    Zardon wrote:
    Suddenly, our new Mac Book Pro will not sign on to our home airport network.
    Whenever we try to activate airport and log on, we receive the same error message: password invalid.
    You might try resetting your connection settings using the steps listed in this message:
    http://discussions.apple.com/thread.jspa?messageID=10695921&start=1
    They're not guaranteed to solve the problem, but they'll only take you a minute or so to try.

  • My wall charger is showing sign of charge but it's not charging, last three days I charged my iphon to mac book pro, what can do for charge with my wall charger. And I tarted also 3 deferent chargers wich is working with other iPhones but my iphon is not.

    My wall charger is showing sign of charge but it's not charging, last three days I charged my iphon to mac book pro, what can do for charge with my wall charger. And I tarted also 3 deferent chargers wich is working with other iPhones but my iphon is not charging it's only showing the sign of charge.

    Hi there Zeeshan Saeed Al Barvi,
    I would recommend taking a look at the troubleshooting steps found in the article below.
    iPhone and iPod touch: Charging the battery
    http://support.apple.com/kb/HT1476
    -Griff W.

  • HT1338 is the garageband, iPhoto,iMovie update free, as I have purchase mac book pro last december, I am unable to update it says "To update this application, sign in to the account you used to purchase it

    is the garageband, iPhoto,iMovie update free, as I have purchase mac book pro last december, I am unable to update it from app store. When I try to do so it says "To update this application, sign in to the account you used to purchase it"
    I have apple ID but after signing into that account too, it does't allow to update. None of the updates for these application are show in software update of late, but it flashes in the dock where app store is . Kindly suggest.

    Should be the account you registered your mac with, and/or the account you used during the setup assistant.

  • HT203727 Can't install window 8.1 on Mac book pro Mid 2012. Bootcamp restarts and it shows black screens with "_" blinking

    My mac book pro 2012 will not install window 8.1. After boot camping all the steps, it he device restarts and black screen pop and "_" this thing blink and nothing happens. I tried  using wininstall USB after formatting the partition it says it Can not install because format of the partition is different.
    help me I want to us window for my business system

    okay so i have done the job but still gives me flicker stuff i have done the command and here it is
    Last login: Tue Apr 21 15:28:18 on console
    ***-MacBook-Pro:~ ***$ sudo gpt -vv -r show /dev/disk0
    WARNING: Improper use of the sudo command could lead to data loss
    or the deletion of important system files. Please double-check your
    typing when using sudo. Type "man sudo" for more information.
    To proceed, enter your password, or type Ctrl-C to abort.
    Password:
    gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168
    gpt show: /dev/disk0: Suspicious MBR at sector 0
    gpt show: /dev/disk0: Pri GPT at sector 1
    gpt show: /dev/disk0: Sec GPT at sector 1953525167
           start        size  index  contents
               0           1         MBR
               1           1         Pri GPT header
               2          32         Pri GPT table
              34           6        
              40      409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
          409640  1365908480      2  GPT part - 48465300-0000-11AA-AA11-************ECAC
      1366318120     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-***********ECAC
      1367587656        1208        
      1367588864   585934848      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
      1953523712        1423        
      1953525135          32         Sec GPT table
      1953525167           1         Sec GPT header
    ***-MacBook-Pro:~ ****$ sudo fdisk /dev/disk0
    Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    1: EE 1023 254  63 - 1023 254  63 [         1 -     409639] <Unknown ID>
    2: AF 1023 254  63 - 1023 254  63 [    409640 - 1365908480] HFS+       
    3: AB 1023 254  63 - 1023 254  63 [1366318120 -    1269536] Darwin Boot
    4: 0B 1023 254  63 - 1023 254  63 [1367588864 -  585934848] Win95 FAT-32

  • I changed my apple id and my password for it too. but on my ipod and mac book pro my old apple id keeps showing up and i it doesn't except any password.  what should i do??

    I NEED HELP!!!!!!
    i changed my apple id and my password (for the apple id), but on my ipod and mac book pro my old apple id keeps showing up for icloud, and i cant put either password!!! Trust me i tried..   What should i do????  So please help!!!!!!

    On your Mac, go to System Preferences>iCloud, sign out, then sign back in with the ID you want to use.
    If you're running iOS 7 on your iPod and old ID is your ID, and if your new ID was created by editing the details of this old ID (rather than being an entirely new ID), go to https://appleid.apple.com, click Manage my Apple ID and sign in with your current iCloud ID.  Click edit next to the primary email account, change it back to your old email address and save the change.  Then edit the name of the account to change it back to your old email address.  You can now use your current password to turn off Find My iPhone on your device, even though it prompts you for the password for your old account ID. Then go to Settings>iCloud, tap Delete Account and choose Delete from My iDevice when prompted (your iCloud data will still be in iCloud).  Next, go back to https://appleid.apple.com and change your primary email address and iCloud ID name back to the way it was.  Now you can go to Settings>iCloud and sign in with your current iCloud ID and password.

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