![]() Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes.If your Mac is using a firmware password, you're prompted to enter the password. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. Command (⌘)-R: Start up from the built-in macOS Recovery system.Keep holding until the described behavior occurs. ![]() To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or after your Mac begins to restart. These key combinations apply only to Mac computers with an Intel processor, not Mac computers with Apple silicon. When your Mac starts acting up, you'll probably run through some common troubleshooting procedures, such as restarting it, running Disk Utility, and perhaps performing a Safe Boot.Your repair.Īpple office computer. If you are lucky enough to have a MacBook Air one thing you might notice is that it doesn't have an optical drive. This utility allows you to setup the array. If you have a Mac Pro and a bank of hard drives you can configure them to run as a RAID array. And then there's Disk Utility's First Aid! Raid is a disc drive protocol designed for high reliability. Here, you reformat, create disk images, make RAIDS, erase disks, and partition drives, as well as create new drives including DMG files. Disk Utility is the primary tool for managing drives connected to your machine.
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