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- How to reinstall mac pro operating system install#
- How to reinstall mac pro operating system update#
- How to reinstall mac pro operating system upgrade#
- How to reinstall mac pro operating system software#
And Shift-Option-Command-R isn't available.
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If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available.The version of macOS offered by macOS Recovery might vary in some cases: When the new owner starts up the Mac, they can use their own information to complete setup. If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time. Please allow installation to complete without putting your Mac to sleep or closing its lid. If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
How to reinstall mac pro operating system install#
How to reinstall mac pro operating system upgrade#
Upgrade to the latest macOS that is compatible with your Mac. Reinstall the latest macOS that was installed on your Mac (recommended). Release the keys when you see an Apple logo, spinning globe, or other startup screen. To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. A pulled cord, power failure or someone accidentally closing the lid of your MacBook Pro are just a few of the things that can disrupt an update. Just about everyone knows the importance of not interrupting computer updates, but sometimes interruptions can't be helped.
How to reinstall mac pro operating system update#
Or click 'More info' to see details about each update and select specific updates to install. If any updates are available, click the Update Now button to install them.
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How to reinstall mac pro operating system software#
Choose System Preferences from the Apple menu, then click Software Update to check for updates. If you have an old MacBook Pro with one foot in the grave, the single best thing you can do to breathe new life into it is replace its traditional spinning hard drive with a solid-state drive. If a wireless network is available, you can choose it from the Wi-Fi menu, which is also available in macOS Recovery. All you need is a connection to the Internet. MacOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. How Do I Upgrade My Macbook Pro Operating System Settings.