MacBook Pro update at startup not working properly rendering MacBook unusable.

My MacBook Pro loads an update at the grey screen then shuts off. When it turns back on it attempts to finish loading the update again. Is there a way to stop this update from happening at the startup screen at this time?

tye91,
you can try this: boot your MacBook Pro into Recovery mode by holding down a Command key and the R key as it starts up. Once the OS X Utilities menu appears, select Disk Utility. On the left-hand side of the Disk Utility window, select your internal disk’s boot partition (typically called “Macintosh HD”). On the right-hand side, press the Verify Disk button if it’s not greyed out; if it is greyed out, or if it reports that errors were found, press the Repair Disk button. Once the verification/repair is completed, exit Disk Utility and select Restart from the Apple menu to restart in normal mode. Does it reach the login screen now?

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I have a MacBook Pro 15" (new Core 2 Duo) with 10.4.8. On my main account, when I try and use the trackpad's two-finger-click to perform the secondary click functionality, I have a problem where instead of showing the secondary menu (same as control-click) it instead shows me the application switch screen (same as you see when entering command-tab).
I logged in under a new user account and enabled secondary click and it works properly -- so this appears to be either a conflict/issue in a plist (though I deleted the plist for mouse and keyboard and the issue still remains) or possibly with some other application/utility that is installed.
Without recreating my world one-by-one, any thoughts, ideas, or suggestions?
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Update on the situation:
1) Reboot in Safe Mode (shift-key down at start-up) -- secondary click still shows the application switcher.
2) Ran Onyx -- Execute the defaults (no others) in the Automation tab and after rebooting the issue still persists.
3) I removed the Microsoft drivers from my system and all plist files -- and reinstalled the MS drivers. On first use of the right-button on the mouse, I got the same "secondary click" response that I get with the trackpad. Before the uninstall it had worked correctly. I remember looking at the MS Mouse config options and it showed the right button performing a control-click. Now, with the preferences at their defaults from the software removal and reinstallation, I see there is an option -- and it is the default option, that the right-mouse button performs a "secondary click".
So it isn't a trackpad or mouse issue, it is an issue that somehow the default system behavior for a secondary click has been changed from displaying the alternate menu to showing the application switcher.
So the question is, what application or utility changed that? I was evaluating the Apple Mighty Mouse a few months ago and decided against it -- the right sensor seemed to fail often. Did that have an option to modify the secondary-click? I have Google and searched for tersm like ["secondary click" setting change modification hack, etc] and haven't seen any mention of that ability -- but clearly on my machine under my main user account, this is happening.
I hope that helps get one step closer.
Thanks in advance.
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My macbook pro's sound is not working properly. It flashes from normal to grey in the menu bar up top, and when greyed out I cannot do anything with it, and it sits at max.

In system preferences > sound > output, it will switch from normal internal speakers > built-in, to headphones > built-in, to digital out > built-in, to headphones > headphone port, to digital out > headphone port- it's nuts! This is all without having anything actually plugged into the headphone jack. While it is greyed out (which happens randomly and on any of the settings), there is no sound whatsoever and it says, "The selected device has no output controls.". Also coinciding with this, my computer has begun to suddenly run extremely slow and lags a lot. Is there a way to fix this? I already tried updating my computer, and restarting it, and it didn't help. I'm wondering if maybe the headphone jack somehow was shorted while I had some speakers plugged in for gaming...? Or is this something I need to send my computer in to be repaired for?
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I have this same issue and have been struggling with it for a while. I really just need to get it into Apple Store to be fixed most likely - but avoiding the hassle and time needed to do so.
Things I've come across:
Something inside of the headphone jack is not right, such that it randomly thinks headphones or some other type of optical audio device are plugged in. you will see a red light inside the jack occasionally when it happens.
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You will need to use an external DVD drive to run the disc installer that came you your machine. You can also do it with another Mac using the Remote Install Max OS X app. Finely, if you have access to another computer, you could burn the install image on a USB thumb drive, boot from that, erase the drive and run the installer.
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Hi eleni_georgia,
Welcome to Apple Support Communities.
The article linked below provides some additional tips that will help you resolve the audio issue that you described.
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http://support.apple.com/kb/TS1574
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Hopefully one of these steps should solve the problem.
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I see that you are experiencing some issues with AirDrop. I have an article with some information for you about what to do if your device is not appearing when attempting to AirDrop:
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http://support.apple.com/kb/HT6510
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since my mac is year and two months old (funny, two months and you are screwed).
Not if you had of purchased Apple Care. You would have been covered for 3 years.
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This is not the place as Apple does not come to these forums.
These are user-to-user forums where everyday folk post "technical" questions and offer answers to each other voluntarily. No one here works for Apple nor does Apple get involved in responding. Not even sure if they "lurk."
"Say" it here -
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Yes login my Google accont.
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MacBook Pro update at startup not working properly rendering MacBook unusable.

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