How do i boot into my osx after installing windows on my macbook pro?

i installed windows 7 on my macbook pro last night and now i cannot get into my osx partition!!! please help me!!!

Press Option at restart, or select the Mac OS X system from the Startup Disk control panel in Windows or the Startup Disk pane of System Preferences in Mac OS X.
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Cannot boot from usb flash to install Windows 8 on Macbook Pro 13"

Hi! All
I have a 2011 Macbook Pro 13" and I want to install Windows 8 on it. I use bootable USB stick, which I can boot fine from on my PC, so I assume it's not the USB stick that is a problem. First of all Bootcamp didn't recognise it. Fine, I partitioned the laptop's hard drive myself. Then while rebooting I held the Option key to manually select the USB drive, but it did not appear on the list. As someone suggested on the internet I even replugged USB stick to another slot during while on that screen, but it didn't help too.

Welcome to Apple Support Communities
You can install Windows from a USB drive in one of these Macs:
- MacBook Pro with Retina display.
- Mac mini (Mid 2010 and newer).
- MacBook Air.
- iMac (Late 2012).
You don't have any of these computers, so you can't install Windows through a USB disk. Its firmware doesn't allow you to start up from your Windows installation disk.
You have to buy Windows 8 on a DVD. You need a System Builder version, which you can buy at Amazon or NewEgg. Follow Apple's steps to install Windows on the MacBook Pro > http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.8.pdf

I can no longer boot up in osx after installing windows 7 with bootcamp

After installing windows 7 with boot camp I am no longer able to access my osx side, I do not receive an option when holding alt when turning on my MacBook

What options do you get? If you don't get any options then you may not be pressing and holding the option key long enough or you are pressing it too early or too late.

Create 3rd partition after installing Windows 7 on Macbook Pro (Lion preinstalled)?

Hi, currently I'm having 2 partition: Macintosh HD - Lion (~680GB) and Bootcamp - Windows 7 (~60GB). Now I want to take ~600GB from the 1st partition to create a FAT32 data storage. My question is: is it possible to do so without reinstalling any OS?

Do not add a partition after BootCamp. BootCamp manipulates the boot-sector of a Mac disk to allow dual-booting. But manually adding a third partition will break that tenuous multi-boot balance.
Many threads posted by people who need to restore OSX from a backup and lose their BootCamp data due to system instability attest to the tourble you can cause.
Buy an external drive and use that for FAT32 (or EXFAT to allow files larger than 4 GB) storage.

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Did you install the Windows Support files you downloaded from Apple when you first started Boot Camp Assistant?
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I installed windows 7 in macbook pro. but its booting only by windows not by mac. how to enter in mac?i installed windows 7 in macbook pro. but its booting only by windows not by mac. how to enter in mac?

i installed windows 7 in macbook pro. but its booting only by windows not by mac. how to enter in mac?

Hold Option key when starting - that gives you the option to choose between startup disks.

Hello, I have mistakenly deleted all partitions on my mac while trying to install windows on my macbook pro, how do i reinstall the mac os back

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Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

How to install Windows 8 on Macbook Pro w/ Retina Display?

Hi,
I'm new to Macbook Pro w/ Retina Display. I'm a non-tech guy. Well, I'm familiar with Windows PCs but not familiar with Macbook Pros and OS X.
Please if you people can step me step by step that how to Install Windows 8 on Macbook Pro w/ Retina Display 15 inch.
Because recently, Apple released OS X Update 10.8.3 which includes support for Windows 8 in Boot Camp.
I will be very thankful. Please help!
Thanks

Hi Mende1,
Thanks for the fastest reply. Well, As I said I'm non tech noob on Macbook Pro.
Well, The Guide is simple but there are few questions which I'm not able to understop still.
1. How to get the copy of Windows 8? I have bought Windows 8 Ultimate and I have Genuine Key with me but I don't have files.
2. Secondly, I have Bluetooth Apple Wireless Keyboard and Magic Mouse, Is this compatible with Windows 8?
Thanks

How to completely remove mac os and install windows 7 on macbook pro with retina display 15 inch

how to completely remove mac os and install windows 7 on macbook pro with retina display 15 inch

There's not much sense in purchasing a Mac to run only Windows on it. Keep in mind that drivers for Windows are a secondary concern for Apple. While Windows will typicall run fine, things like power managment are not optimized under Windows (you'll get less time on battery while running Windows). You will also not be able to install firmware updates. Firmware updates might be necessary whether you run Windows or OS X as they are updates to the code in your hardware and are not OS-specific. You must be running OS X in order to install a firmware update. You can do this even if you boot off of an external drive with OS X installed on it. At the very least, you should keep just a small partition for OS X on your internal drive.

How to install Windows 8 on Macbook pro with retina display ?

Hi - How to install Windows 8 on Macbook pro with retina display ?
I am pretty new to the apple world. Tried doing it through bootcamp but did not success.
I am not interested to install it through Parallels or Fusion. Plz guide.
Thanks !

OK, use Windows 8 in Bootcamp. Be aware that there are no Bootcamp drivers for Windows 8 yet. So you may experiance not only delays but display problems, freezing, crashes and other problems.
Here is the Bootcamp forum. Make sure you read all the posts from people experiencing Windows 8 problems with Bootcamp. https://discussions.apple.com/community/windows_software/boot_camp

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After installing Maverick on my macbook pro, imessage on my ipad and Iphone stopped working properly.
What I get is a RED exclamation and "Not Delivered". It happens even if i resend it over and over.
I have made sure that the 3 devices all have the same settins in iMessage.
I have made sure to try doing it from the same network and from the cell provider network.
I have tried rebooting all three devices.
The only way to get it to work on my iphone and iPad is to dissable it in Mavericks on my MacBook Pro.
Is this a "feature" of the new OS?

Hi,
On the iOS devices remove the Apple ID.
Set the device in to Airplane Mode (this breaks with the server)
Start with the iPhone to add back the Apple ID - only after you see the iPhone Number is Verified.
The Restart the Mac Version
Accept the pops ups that state what the iPhone is using.
Do same on iPad.
8:31 pm Wednesday; April 2, 2014
 iMac 2.5Ghz i5 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

Can't start up with Mac osx after installing windows on partition

Hello guys.
I installed windows on a partition of 100gb and I restarted the iMac so I can log on to Mac osx.
I hold down the option key after I hear the sound but only the windows disk appears there.
I tried the DVD that came with my Mac by holding down the "c" key but nothing happened. I was holding it down for 2-3 minutes.
I need some help here
Is there a way to boot Mac again?
Is there a chance I deleted Mac osx by installing windows?
And if there is how the **** am I getting it back since the osx DVD does not boot??
Thanks in advance

The Macbook will not allow you to startup with your Install DVD while you have Open Firmware password enabled. Disable that first, then try again....
http://docs.info.apple.com/article.html?artnum=106482
Launch the Open Firmware application to disable it.

How do I un-install windows on a macbook pro

I have installed an update of Windows Microsoft 8 on my macbook pro when I had to install a clean installation of Windows 8. I would like to un-install the update and then re install the clean installation of Windows 8.
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I have a late 2013 MacBook pro 15 inch with retina display.
After I got windows 8.1 up and running with a disk copy I tried to go back to the mac os side, but after I held down option/alt after restarting and clicked on the osx partition but all that happened was a white "no sign" showed on the screen and my computer began to boot back into windows.
I don't know if all my mac stuff is gone, so should I try and use osx recovery?

Try this first. Do a backup. Boot to the Recovery Volume (command - R on a restart or hold down the option/alt key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair and Repair Permissions until you get no errors. Then re-install the OS.
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How can I return back to OSx after installing Lion?

I'm disappointed. After installing Lion, everything is slower. The best thing I had last year was my new MacBook Pro, because everything was fast.. (sleep, opening programs, multitasking...etc) Now, everything takes forever. How can I return back to OSx?

Downgrade Lion to Snow Leopard
1. 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.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install Snow Leopard.
This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard. I suggest you make a separate backup using Carbon Copy Cloner 3.4.1.

How do i boot into my osx after installing windows on my macbook pro?

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