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Hi, I have an issue with my Mac Book Pro 15 Inch Mid 2010. I have installed Windows 8.1 operating system during week end and only windows is opening when I log in the mac. I don't know how to switch back to apple OS. Can some one please help?

Windows 8.1 installed on my Mac and now I am not able to open Apple OS. Mac is opening straight windows with out an option to open Apple OS. My Mac is running on the latest Yosemite OS.

MacBook Pro, OS X Yosemite (10.10.2), 15 Inch Mid 2010 Model

Posted on Mar 30, 2015 3:56 AM

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Posted on Mar 31, 2015 1:33 AM

Hold down the option key while restarting and select your Mac partition.

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Hi, I have an issue with my Mac Book Pro 15 Inch Mid 2010. I have installed Windows 8.1 operating system during week end and only windows is opening when I log in the mac. I don't know how to switch back to apple OS. Can some one please help?

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