MacBook Pro does not start. "traffic sign" on the screen

Hi,
After unistalling Norton AntiVirus as it had expired i shut down my machine. Now when starting it the grey apple is on the screen and below it the little thing that "goes around". After a while the grey apple changes into the "traffic sign" (a circle with a diagonal line going from 10 o'clock to 5 o'clock within the circle) underneath the little thing goes around for ever.
Can somebody please explain what's going on
thanks, pyry

Well, well well! So close and yet so far away. I give full credit to Graham. Without him I would be nowhere in this case, And I got it working with the help of his advice. Here's what i did
1. zap the PRAM - no startup effect
2. Start with option key down - no effect
3. start with shift key down - yes, it started as "safe boot". No internet connections etc but anyways.
4. Followed Grahams disk utility advice, everything settled except for something with ARDAgent (should not affect this I would think)
5. system preferences defined correct startup disc. Locked the setting, gave restart command via system settings button
6. machine restarted beautifully - gave full credit to Graham
but...
after closedown tried to restart machine again and "traffic sign" appeared. I can now start my machine via the shift button and then restart it via the systems preferences startup disc restart button. I do not however understand what is going on. I try to lock the startup disk via the system preferences but each time after startup when I go in there to check I see the lock sign as open.
Can someone please advice...

Similar Messages

My 2011 MacBook Pro does not start and stop after the apple appear, they said that the problem is a video problem and need to change the logic board. Cost almost same to buy a new one. Somebody have the same problem?

I have a MacBook Pro early 2011. Does not start. After the apple show, a blank screen appear. The service said that the problem is with the video plaquue in the logic board. Need to change. Cost lmmost the same than a new MacBook Pro. Somebody has the same problem? What we can do?

I hate to break this to you, but life isn't fair. If your job is that critically in need of a computer, then you should have a spare to use for just this kind of situation or have your employer provide you with a computer to use.
Computers break down, just like cars. If your car breaks down do you curse the car maker or get it fixed? Surely, you paid more for your car than the computer.
This is reality. Best get used to it because it won't get any better.

My MacBook Pro, does not start after pushing start button. The side bar starts and stops at half way.

My MacBook Pro, does not start after pushing start button. The side bar starts and stops at half way.

Hy myneck,
Happy Holidays! The resource below may provide some steps to try if your MacBook Pro won't start.
Troubleshooting: My computer won't turn on - Apple Support
http://support.apple.com/en-us/TS1367
This article discusses what to do if your Mac won't turn on. To differentiate this from a display issue, be sure that when you press the power button:
You don't hear a startup chime.
You don't hear any fan or drive noise.
There is no video on your built-in or external display
If your computer has power but doesn't display any video, it may have one or more of these similar symptoms when you press the power button:
You may hear a startup chime.
You may hear fan or drive noise.
You may see a light from the Sleep LED (if your Mac has one).
Pressing the Caps Lock key on the keyboard causes it to light.
If any of these display-related conditions occur, see Troubleshooting: My computer has no video instead. Otherwise, continue with this article.
If your computer won't turn on, try each of these steps:
Verify you have a good connection from your Mac to the wall outlet by confirming the power cord and adapter if present are securely connected and plugged in. To check if the wall outlet is working, plug in a lamp or other electrical device.
If the wall outlet is working and you continue to have no power try another power cord or adapter if available. If it works you may need a replacement cord or adapter.
Note: See Apple Portables: Troubleshooting MagSafe adapters for further troubleshooting with MagSafe adapters.
Disconnect all accessories that are plugged in to the computer, such as a printer, hub, or other mobile device.
If your Mac supports user-installable memory, solid state drive, or hard drive, and you recently installed any of these, make sure they are installed correctly and are compatible with your computer. If possible, reinstall the original memory or drive into the computer to find out if the behavior persists afterwards.
MacBook Pro: How to remove or install memory
MacBook: How to remove or install memory
Mac Pro: How to remove or install memory
Mac mini: How to remove or install memory
iMac (27-inch, Late 2012): Installing or replacing memory
iMac: How to remove or install memory
Reset the SMC.
If you are still unable to start up your computer after trying each of these steps, visit an Apple Store or Apple Authorized Service Provider (AASP) for further diagnosis. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar using http://www.apple.com/retail/geniusbar/ (available in some countries only).Note: Diagnostic fees may apply for issues not covered under warranty or the AppleCare Protection Plan (APP).
I hope this information helps ....
- Judy

New Macbook Pro does not start up after updating...HELP!!!

Hi,
My new Macbook Pro does not start up after it got updated. The first time I used it, it was perfect. I updated it and restarted it when it told me to but it doesn't boot. It shows an apple and a spinning circle when it turns on but that's it.
Can somebody please help me?

You should probably post your question in the MacBook Pro discussions:
http://discussions.apple.com/category.jspa?categoryID=190

My macbook air does not start! I press the on key and nothing happens.

my macbook air does not start! I press the on key and nothing happens.
this morning when I took my macAir it would nt start and when I pluged it, there was no light indicating a charge.
I checked the charger on my wife's mcAir and it worked.
I plugged it back to mine and the orange light came.
since a few hours, the plug is on with the orange light on, and still I cannot start the computer. Nothing happens!
help!

Try a SMC reset
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
This process helps correct these power issues.
Power
The computer doesn't respond to the power button when pressed.
A portable Mac doesn't appear to respond properly when you close or open the lid.
The computer sleeps or shuts down unexpectedly.
The battery does not appear to be charging properly.
The MagSafe power adaptor LED doesn't appear to indicate the correct activity.

MacBook pro does not start. How can I back to Mac OS X Lion?

I have a MacBook Pro. On my MacBook i made three partition, then I installed window 8. After that I started windos and try to delete third partition by Administrator tool from windows operating system. After that my MacBook does not start. How can I back to Mac OS X Lion?
After that I again install windows 8 from a DVD. Windows start well, but I can not start Mac OS system, may be it was 10.6. Sever times I tried to install OS X Lion 10.7 thought DVD, I could not. On MacBook I have a lot of important data.
What can I do. I want to a complete suggestion. Please help me to solve the problem.
My MacBook Pro model no. A1286.

You installed Windows improperly the result of which was to wipe out the bootloader for OS X. You can give this a try:
Boot Using OPTION key:
1. Restart the computer.
2. Immediately after the chime press and hold down the
"OPTION" key.
3. Release the key when the boot manager appears.
4. Select the OS X disk icon from which you want to boot.
5. Click on the arrow button below the icon.
If you are still unable to boot from the OS X volume then you will need to reinstall OS X:
Reinstall OS X without erasing the drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. 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 installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
This will destroy the Windows bootloader so you cannot boot into Windows. The solution is to remove all the partitions on the drive except the OS X partition, then expand the OS X partition to take up the entire drive.
Use Boot Camp Assistant in the Utilities folder to create a Windows partition on which you can install Windows. You cannot have any other partitions on the drive besides these two.
Now given all the above you may be able to install a third-party bootloader that would work with the setup you now have: Boot Runner 1.4.

My 2009 13" MacBook Pro does not start

My 13" MacBook Pro (2009 mdoel with Moutain Lion) does not start up.
When I press the power button, it does not start.
I do see the white light on front right of the MacBook Pro. The battery is half full. I'm connected to a power cord (light on power cord is organge). I do not see any lights on the keyboard and nothing on the screen. I do hear a fan.
How do I get my MacBook to start up?
Thanks, Gilbert

As you're running Mountain Lion, have you tried booting to the Recovery partition (holding down the Command and R keys whilst booting)?
If you can get to the Recovery partition you can use Disk Utility to verify and, if needed, repair your hard drive.
If you can't boot to the Recovery partition, at least see if there is a hardware problem by running the Apple Hardware Test.
Good luck, call back...
Clinton

Macbook Pro does not start properly

I have a Mid 2010 15" Macbook Pro that requires 2-5 pushes of the power button to start after being off for more than1/2 hour.
Once it does start i can power it off and back on again with no issues.
I have reset smc and pram,changed ram, tested different ram banks,unplugged everything off logic board,tried just battery power,tried just ac power,
tried both ac and with battery attached.All the updates have been installed on new install of Mavericks.
Any help would be greatly appreciated.

You have taken all the "standard" troubleshooting steps.
I suggest you take it in for diagnosis.
Barry

Macbook pro does not start, macbook pro does not start

Hello
laptop does not start anymore. Press on buton but qfter the sounds, the screen stays white and does not bring me to to type my password. it shows now a question mark....What could be the reason and what is to be done then? thank you.

A flashing question mark appears when you start your Mac
Also see the following:
Troubleshooting: My computer won't turn on
Mac OS X: Gray screen appears during startup
Read and follow all the steps.

My imac does not start anymore (stops at the screen with the apple and a rotating circle). An idea what I could try to make it start again?

My Imac does not start anymore.
==> What I have already done:
1) I tried with the tigger dvd to reinstall. It didn't succeed.
2) Via the single mode, when starting I got the message "disk0s2: I/0 error" several times. After that I got "Root device is mounted read-only"
3) Nevertheless, I tried the "fsck -yf" function. After checking "Journal HFS Plus volume", "extends overflow file", "catalog file"... and invalid record count
==> /dev/rdisk0s2 (hfs) EXITED WITH SIGNAL 8
Can someone advices me? I red on the internet I could reformat the disk... loosing all the data I didn't backed up. How am I suppose to reformat?
Thanks in advance,
Fred

Reset the SMC: http://support.apple.com/kb/HT3964
Reset the PRAM: http://docs.info.apple.com/article.html?path=Mac/10.6/en/26871.html
Restart the computer while holding down your mouse button which if you hold it down long enough (5 minutes at most) should eject the disk
If the disk still doesn't come out at that point then you need hardware evaluation;
contact Apple, contact an Apple Authorized Service Provider, or make an appointment with an Apple Retail Store.

Macbook Pro does not start up and nothing works. Need recovery!

Hi there
My MacBook Pro has shut down while wathcing a video and when ever I try to start up, a sign looking loke"no parking (Prohibitory Sign)" comes up after grey screen.
I tried to start it in safe mode but it does not go in safe mode.
Tried pram and nvram reset pro but didnt help.
Succesfully started in recovery mode ( tried both cmd + R and Cmd +opt+ R) tried disc repair but it cannot repair or verify anything. it gives me errors.
Could not recover anything in here as could not find any back up.
Tried to re-install Maveric but could not see HDD, so could not go ahead.
Inserted OS X installationCD that came with laptop, stared up by holding C, tried to repair disk but again, could not repair disk.
Could not do anything in Terminal.
I cannot even erase and re-install the OS
I also had windows 7 installed but now I cant start it up aswell.
The question is, what else I can try to save my computer? More importantly, I have so many pictures I want to save. How can I save them?
Thanks in advance!
Memis.

Based on the procedures you have tried and the symptoms you have described, your MBP internal HDD had failed and will need to be replaced.
If you have a backup, your data should be available to you when you install the new HDD. If you do not have a backup, you may try to see if any of the data recovery software available online will work for you. Most have a trrial version that will tell you if they can be of any use for you or not. The last option is to engage the services of a data recover firm. They will not guarantee if they can get any or all of your data and will be very expensive.
Ciao.

MacBook Pro does not start up?

Hi, I have a MacBook Pro, I have not used it for a couple of weeks. Came to turn it on today, it starts, the Apple icon appears, as does the timer, then a few seconds later a bar pops up, as if it is downloading data gets half way and then it switches to laptop off. It is fully charged, as was working fine last time it was used?

It's attempting to fix a file structure problem with the boot drive and failing.
You can try to fix it yourself which if your data hasn't been recently backed up, data recovery efforts are in order (the drive still functions) first, then likely a erase and install of OS X, programs and return of files are in order.
Again you can do it youself or have a local PC/Mac professional do it for you.
.Create a data recovery/undelete external boot drive
..Step by Step to fix your Mac
Erase, formatting, OS X installs on Mac's

MacBook Pro does not start up properly

Each time I turn on my Macbook Pro, everything will load up to the desktop, I can move the cursor around but cannot click on anything in the dock/menu bar across the top, nor does it respond to any of my hot corner settings. I have to hold down the start button to shut down, wait and then start again and it will always work fine at the second attempt.
I have had the Macbook Pro just over 6 months now, and have been running Lion since it was launced I think.
Any suggestions?

Boot while holding down the command-r keys and that'll boot into the Lion restore disk. Run Repair Disk using Disk Utility.

My MacBook Pro does not start anymore

This morning ,I opened my my macbook as usual , I had time to introduce
My user password and suddenly the display turned itself off
With a noticeable "click" which I can hear when I press the start
Button with no avail... Help please !!
Nick

You may look at this support article for a solution:
http://support.apple.com/kb/ts1367
If this does not help, you will have to take your MBP to a repair facility.
Ciao.

Macbook Pro does not start. Grey screen with logo and status bar going on forever.

I have a Macbook Pro, late 2010 running with OS Mavericks. Lately it became very slow but never had major issues like crashing. Lat night, I tried a hard restart because it was stuck and I cannot get it to restart ever since. I get sound and grey screen with logo. The status bar is going on forever but does not boot. Can anyone help, please?

Try a safe boot:
http://support.apple.com/kb/HT1564
If no success, boot into recovery:
http://support.apple.com/kb/ht1310
Select the recovery partition and then from the 4 option menu select Disk Utility.
Open Disk Utility>First Aid and run Verify and Repair.
What are the results?
Ciao.

MacBook Pro does not start. "traffic sign" on the screen

Similar Messages

Maybe you are looking for