MacBook Pro :: WILL NOT START. Powers On, Grey Apple Screen Loads Then Shuts Off?

Mar 10, 2012

Fairly new MacBook Pro with OXLion. When I try to turn on the computer, the startup noise and screen appear (grey loading screenwith apple icon). A loading bar at the bottom of the screen fills about a third up, then the computer shuts down again.

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Jun 1, 2014

When I start my Macbook Pro ´13 2013, the grey screen with the apple appears and loads but then it "falls asleep" and when i press a key the mac wakes up but there is a black screen with the cursor.

Things I've tried:

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-Resetting SMC 

Info:
MacBook Pro

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Jun 26, 2014

I have a MacBook Pro from 2010 I believe with iOS Maverick installed. (MacKeeper is also on there, which I just found out is apparently malware) 

So three days ago I was watching Netflix, the image froze, but the audio kept going. Figured my internet was slow, so I waited a little, nothing happened. pressed escape to leave the full screen mode, but nothing happened. None of the keys would do anything, not even the sound or brightness keys. So I did a force shut down by holding down the power button. 

I waited a little, then decided to turn it back on. Start up sound played, white screen with grey apple logo and loading gear appeared together with a grey loading bar. I figured that this meant it had to repair something. But after about a minute or two it just went to a black screen/ shut down. I left it off for a day, tried it again, same thing. Next day I tried booting it up while holding the shift key to do the safe boot (I knew it wouldn't work since I already had the grey loading bar anyways), same thing happened. 

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Mar 23, 2012

My power mac g5 has suddenly started to shut itself down in the early stages of boot up. The apple logo appears and the spinning timer logo spins befor a complete shut down. 

I have used my o/s disc to access the disk utility. Repair disc is not an option. Verify disc is an option but this process fails due to " invalid nodes"  

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Apr 8, 2012

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Dec 5, 2014

I have a Macbook Air.  I thought I had lost it, so I erased it from Find My Iphone.  Then of course I found it, my computer was completely erased.  When I started my computer I hear the chime, but then a blank grey screen (no apple).  I have tried every start up command and reset.  I have tried Command R, Option, with and without connecting an Toshiba hard drive that has my computer backed up. I have tried disconnecting everything more my computer. I'm not using an external keyboard. 

Again, when I try command R, option, command n, D,T, the shift button, etc. nothing really happens the screen is still grey.

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Dec 11, 2014

At start up, my computer shows grey apple screen and then goes blank. Why?

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When i start the computer and the grey screen comes up with the apple logo etc., a grey "loading" bar has started appearing in the bottom of the screen. Takes a few minutes for it to go away. In the meantime the computer gets very hot and the fans are up to 6000 rpm. Then the os starts up, and I cannot download anything, due to the fact that it thinks my harddrive is full, though i have more than 100 gb of free space.I cant even download the 10.6.2 now due to the harddrive appears to be full

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OS X :: Loads Grey Apple Progress Bar On Startup Every Time?

Nov 27, 2009

Went to the Apple store, explained my problem and they brought out a new iMac for me. Did a retail swap instead of going through the Genuis Bar. I'm so happy =) =) Got a brand new iMac. This time, I disk Disk Check right away, and it says hard drive appears to be OK. No grey progress bar anymore! The problem was probably b/c the hard drive was defective. It had nothing to do with the unsafe shutdown, or pressing shift, etc...

I have a iMac 27'.. Purchased it 2 weeks ago.

I think I did an unsafe shutdown.. Or I pressed "shift" while booting, or something.. Idk and I also have WinXP installed on BootCamp. However for some reason now every time I startup my Mac, it loads with the grey Apple horizontal progress bar with a little loading animation on top. It's so annoying. This didn't happen after no firmware upgrade or anything. And I don't have any extra hard drives attached. Nothing. Everything is fine. Everything used to work. Even with BootCamp before. I think this happened after an unsafe shutdown or something. And also, my Mac has over 500GB free space still, so that's not an issue.

The progress bar at startup Takes 5-6 min extra to boot up. After it, the Mac OS X loads and everything is fine but that's not what my problem is. My problem is why should I be getting the stupid progress bar EVERYTHING I load my Mac?

I tried booting with installation disk, then going to Disk Utility but NOTHING. I click repair, and after 5 mins some error pops up saying backup your files when you can then reformat the disk.

Oh btw, Anytime I click Repair Disk it goes, then says: Updating boot support partitions for the volume as required. And after that it says: "Disk Utility stopped repairing "MY DISK NAME HERE". Disk Utility can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backend-up files.

Maybe the hard drive is damaged or defective.

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Apr 9, 2012

I have an intel imac - can't tell you much about the details as I can't get any info out of it. I installed snow leopard about a year ago - no issue since then other than occassionally the screen goes black but nothing major.Yesterday, I backed up to my usual passport backup and then today, it froze. I couldn't turn it off or restart at all so resorted to the power button. Since then, I can turn it on, it goes to the grey screen (no blue screen) and I get the apple logo and the spinning clock/wheel. For hours and hours....So, I tried one of the apple support pages and worked through - peripherals, safe boot, NVRAM, PRAM, tried to reboot with mac osx disc (the original not snow leopard) - nothing. Absolutely nothing changes - same old grey screen, apple logo and spinning clock/wheel.

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Dec 4, 2014

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May 24, 2012

I purchased my Macbook in 2008, roughly July.

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Went to turn on my Mac book pro 2011 or 2012 and it went to the grey loading screen with an apple, spinning gear and a loading bar. Once the loading bar completes my Mac book just turns off.  It just keeps doing this, I tried to do a safe boot, but once it was done that it turned off and continues to do this circle of grey screen loading than turning off.

Info:
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My MacBook Pro (The oldest one, I believe) won't start. After OS X 10.6.5, it will sit at the grey screen with the spinning gear. Safe boot does the same. Verbose mode shows it stuck at "vmnet: netif-vmnet8: Adding protocol 2." I can boot off the install CD and single user mode

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Nov 30, 2014

grey screen no apple followed by blue screen with vertical lines. Graphics and logic board replaced <6 months ago. What to do? I held down shift, it gets HOT HOT and makes noises. (for safety mode) followed by a blank grey screen and blue screen. Then tried the other way (I think  it's command alt delete? I don't remember) and it turned from grey (no apple symbol) to blue blank. Then third time, grey followed by blue with vertical lines, not blocky clear lines that you can see if you are close to it. 

Info:
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Mar 29, 2012

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May 1, 2012

Macbook Pro was purchased in mid-late 2009 and is running on OS X 10.6. Today is suddenly stopped responding and so I turned it off. When I turned it back on it opend to the grey screen with the Apple logo and the loading icon and that is where it stayed. I have been searching for the answer on different forums but have yet to find a solution. My hard drive is appearing in the Disk Utility but not in the box when I try to reinstall OS X.

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