How can i get rid of a blue screen background on my MacBook Pro

how can i get rid of a blue screen background on my MacBook Pro

Hi Heidi,
Do tou mean it only boors to a blue screnn???
If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.
If that doesn't help Reinstall the OS.

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How can I get rid of The Grey screen and boot my macbook?

Today I was on my MacBook Pro (bought July 2011) and it went to a blank blue screen. I powered it off and tried to restart it. It loaded the apple and spinning circle but it went to a grey screen and froze there. I've read and tried a lot of different things already but nothing has worked. I did the hardware test and it found no problems. I tried to safeboot it. I tried everything on here: http://support.apple.com/kb/TS2570 except the last suggestion (I'd rather not have to lose all my files unless absolutely nesseccary). I also tried the "hold Command + R keys" to try and get to utilities. Anything else out there that I could try? Not sure what the exact operating system is either.

I wouldn't assume that's the hard drive. The fact that the screen turned blue all of a sudden isn't necessarily an indication of a hard drive failure. Check out this post I made yesterday:
https://discussions.apple.com/message/21756819#21756819
My personal opinion would be to try and boot from an external hard drive with the appropriate OS installed. With a 2011 model, I would assume that should be Snow Leopard or later. AHT doesn't catch everything, and I don't know if it even does drive scans for bad blocks. I do know for a fact that it pretty much limits itself to digital interfaces and can't go beyond analog driver stages. For example, if the driver stages of a FireWire port or ethernet port are blown, AHT will report them as being OK.
If you got hit by a transient, which could indicate an internal supply problem or a line problem if you were connected to the internet via a wired connection or you were running off the charger, there's no telling what it might have caused the drive to do (if it's the drive) and it could easily cause the screen to suddenly go to blue, but what other damage was done?
My point is that you need to confirm what the source of the problems are. If there's a logic board problem, your drive and data may be OK. If the drive is bad, some of it may still be recoverable. The problem may very well be drive related, but I wouldn't go out and start throwing money at new parts without first confirming what the cause of the problems is.
Hope this helped, and good luck.

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Sean and Andy -
I have to agree with Andy here. I am having the same problem on a mid 2010 MBP (6,2). I have already read the AHT info provided by Sean's link, and they are less than helpful. I'm sure they will be helpful to those who find that they work, but they are confusing if this is not the case. For example, my MBP(6,2) came with ONE (not two) installation disks, so the instructions don't work for me. Another issue is the instructions confound the descriptions related to the MBP, the original (delivered) software (OS X version), and the current installed OS X upgrade software.
So here's what does NOT work for me...
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     (B) I have checked my firmware versions and they are all up to date, as per Apple's information.
     (C) As suggested in another thread, I looked for /Library/Core Services/.diagnostics and it was NOT present. I followed his instructions, downloaded the correct (I believe) dmg, and installed it. It is in the correct place, and I can see all the invisible files using Pathfinder.
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     (E.4) The 'internet recovery' process then allows me to enter a network name AND password. I do this, for my current wi-fi router, and the process rejects it as an incorrect login ID. It is NOT an incorrect login ID!
So, now asking Sean and Andy (or anyone else) for further suggestions... ??? As Andy suggested, many people ask questions here because they have -already- worked through the 'official' recommendations, and have found them to be inadequate.
Any advice would be appreciated! TIA.
Ed

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All plugins are disabled.
I have one extension, CompactHeader 2.0.9 which I removed but the problem remained. I have now reinstalled it.
I uninstalled and reinstalled Thunderbird - problem just the same.
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Cheers

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is thunderbird better?

How can i get rid of a blue screen background on my MacBook Pro

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