If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.If the installer asks to unlock your disk, enter the password you use to log in to your Mac.Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time. Allow installation to complete without putting your Mac to sleep or closing its lid.

Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the installer's instructions.įollow these guidelines during installation: If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image. Intel processor: Make sure that your Mac has a connection to the internet.Apple silicon: Turn on your Mac and continue to press and hold the power button until you see the startup options window, which includes a gear icon labeled Options.Start up from macOS Recoveryĭetermine whether you're using a Mac with Apple silicon, then follow the appropriate steps: The most common repairs with the model A1211 15' MacBook Pro are replacing a dead battery, replacing a malfunctioning left or right fan, and upgrading the hard drive or RAM. The model A1211 15' MacBook Pro features a switch to the faster Core 2 Duo processor and the addition of a Firewire 800 port. Read 3 user reviews of KakaoTalk on MacUpdate. Download the latest version of KakaoTalk for Mac - Easy, no-cost messenger.

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