Mac book pro stuck at start up screen

Mac book pro was running slow so restarted it and now can't get past start up screen. Any tips?

Force Quit (under the Apple menu).
Can you get any MS Office app to open without freezing? If so, you should go under the Help menu of any Office app and select "Check for Updates" - the latest version is 14.3.9.
You might also want to try holding down the option key when you next try to open Outlook - this will force a rebuilding of your user database. You may have a problem there.
If all else fails, you can always trying uninstalling Office 2011 (http://support.microsoft.com/kb/2398768?wa=wsignin1.0) and reinstalling it...
Clinton

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Which model MacBook Pro do you have (e.g., “15-inch Late 2011”) and which version of OS X are you running?
Clinton

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The tv is a extended display on your mac like a second moitor you want to mirror them (same thing on both)
This should help you

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<E-mail Edited by Host>

It appears what happened is the installer though it was looking at a empty drive and just went ahead and installed.
I of course am assuming here you didn't use Disk Utility to format the drive first before installing, that would wipe out your files and programs for sure.
So what to do, what to do.
Well there is hope for you as long as the drive wasn't Filevaulted.
I'll explain. When a hard drive writes data for the first time to a drive, it starts at the very top and works it's way down.
When OS X was installed the first time, it was at the top of the drive, unless you upgraded then the upgraded OS X could have been written elsewhere.
Now when you just reinstalled OS X, the new OS went on the top of the drive, overwriting any data that was there previously, so what was there you have lost forever which is about 8GB or so. If it was the previous OS there, then your more in luck because only the old OS X was overwritten.
The remaining space on the drive still can have a copy of your files, provided it's not overwritten yet.
It's because when a hard drive deletes data or reformats, it doesn't remove the data off the drive or overwrites it immediately, it's just made so it's SPACE is available for new files to be written there.
So technically one can recover the deleted data off a non-encrypted/scrubbed hard drive with special software.
The way it does this is it reads the 1's and 0's of the files themselves, and through a lot of figuring out, can tell what that file is and what it belongs too.
So what you will have to do is this:
Create a data recovery/undelete external boot drive
or if you don't have the skills, then take it to a local PC/Mac tech and they can do a direct image of the drive and then you can run Data Rescue on it to rebuild your files.

I have a 15 inch Mac Book Pro bought in October. Screen is randomly going blank. How can I fix this?

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.. check your screen saver setting.. otherwise take it to the Apple Store to see a Genius.

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Try resetting the SMC http://support.apple.com/kb/ht3964
You can get an idea for repair from these site. Check locally for your area.
https://www.techrestore.com/mac/
http://www.dttservice.com/macbookprounibody.html
http://www.myservice.com/macbookpro.html
http://www.ifixit.com/Device/MacBook_Pro
http://www.PowerbookMedic.com

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What is the exact model of your Macbook Pro?

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If the SMC reset does not solve the situation, post this from your MBP:
Make certain that the power adapter is connected.
Ciao.

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You are entitled to 90 day telephone support from Apple. Try contacting them.
Apple Support Contact
Apple Support contact - Telephone

My Mac Book Pro wouldn't start after memory update

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I was trying to install Corsair 8GB (2x 4GB) 1333mhz PC3-10666 204-pin DDR3 SODIMM Laptop Memory Kit CMSO8GX3M2A1333C9; and now I realized that I made a mistake because this Mid 2010 Mac Book Pro uses 1066mhz PC3 8500 instead, so should that be the problem of compatibility? I should guess so, although in my HP Elite I have 800Mhz ddr2 where the bus works at 640 mhz ddr2.
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I made this mistake because ordered at the same time this memory along with memory cards for my new 27" iMac, which works at 1333Mhz.
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my mac book pro is not "starting" it makes beeping noise when i turn it on, prior to this for half a day it was turning off after an hourr so.

It may very well be a RAM issue but possibly something else. Look over this extensive troubleshooting document for a possible solution:
https://discussions.apple.com/docs/DOC-3353
Ciao.

My mac book pro does not start but has error message with a question mark on screen. took it in and was told probably the hard drive as could not reconize it so bought new one but still not connecting.what do i do

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That's why i am interested on anyone's help.

Welcome to the Apple Support Communities
I think that your Mac detects your hard disk, but the problem is that your new hard disk doesn't contain any operating system, so your Mac doesn't find any bootable partition and you see a question mark.
If your Mac came with DVDs, insert the Mac OS X Install DVD and hold the C key while your Mac is starting. Then, just install Mac OS X. If the hard disk isn't prepared to install Mac OS X, you will have to erase it using "Mac OS Extended (Journaled)". See > http://pondini.org/OSX/DU1.html

My mac book pro won't start...its stuck on the apple icon and a rotating circle when i start my computer

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See this Apple note on steps to take to deal with the rotating circle on startup.

Mac book pro stuck on grey screen will not boot

UUgh someone please help me. My lap top is a mac book pro 2006, and it is stating cannot get audit port I dunno how to fix. I'm on my iphone a we speak it has been down for weeks can someone help me please? I would be forever greatfull

Hi there JesSay241,
You may find the troubleshooting steps in the article below helpful.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
-Griff W.

Mac book pro stuck at start up screen

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