• In a Finder window, press VO-Right Arrow or VO-Left Arrow to move through the window until you hear “toolbar.” Interact with the toolbar.

    • Note: The headings on this list indicate the Macintosh System bundle names; the bullet points indicate the version of the System File included in that bundle. This is to make it clearer for people searching for specific bundle versions as opposed to System File versions. Finder File versions are not indicated. 1 Classic Mac OS 1.1 Macintosh System Software (0 - 0.3) 1.1.1 System File 1 1.1.2. Plug your USB drive into your Mac. This is the 16-gigabyte minimum flash drive that you'll use to install macOS High Sierra on your computer. If your Mac doesn't have traditional USB ports on it, attach your USB-C to USB-3.0 adapter first.

    Press VO-Right Arrow until you hear “view radio group” and then interact with that control. Press VO-Right Arrow key until you hear the view you want to use.

    You can choose from icon, list, column, or Cover Flow view. In Cover Flow view, the browser is split horizontally into two sections. The top section is a graphical view of each item, such as folder icons or a preview of the first page of a document. The bottom section is a list view of the items.

  • When you have selected a view, stop interacting with the view radio group and the toolbar, and then press VO-Right Arrow to move through the window until you hear “sidebar.”
    • To move down the list of items in the sidebar, press VO-Down Arrow. When you hear the item you want, jump to it in the view browser; you can interact with it.

    To jump, press VO-J. If you’re using VoiceOver gestures, keep a finger on the trackpad and press the Control key.

    Mac
  • Move to and select the item you want to open, using the method for the view you’re in:

    • Icon view: Use the arrow keys to move to the item you want.

    List view: To move down the list rows, press VO-Down Arrow. To expand and collapse a folder, press VO-. To move the VoiceOver cursor across a row and hear information about an item, press VO-Right Arrow. Or press VO-R to hear the entire row read at once.

    Column view: To move down the list until you find the folder or file you want, use the Down Arrow key. To move into subfolders, press the Right Arrow key.

    Cover Flow view: To flip through the items in the top section and move automatically through the corresponding list rows in the bottom section, press the Left Arrow or Right Arrow key.

    When you find the file or folder you want to open, use the Finder shortcut Command-O or Command-Down Arrow to open it.

    VoiceOver announces when you have selected an alias or a file or folder you don’t have permission to open.

    These key combinations apply only to Mac computers with an Intel processor, not Mac computers with Apple silicon.

    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. Keep holding until the described behavior occurs.

    • Command (⌘)-R: Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. If your Mac is using a firmware password, you're prompted to enter the password.
    • 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.
    • Option-Command-P-R:Reset NVRAM or PRAM. If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery.
    • Shift (⇧): Start up in safe mode. Disabled when using a firmware password.
    • D: Start up to the Apple Diagnostics utility. Or use Option-Dto start up to this utility over the Internet. Disabled when using a firmware password.
    • N: Start up from a NetBoot server, if your Mac supports network startup volumes. To use the default boot image on the server, hold down Option-N instead. Disabled when using a firmware password.
    • Command-S: Start up in single-user mode. Disabled in macOS Mojave or later, or when using a firmware password.
    • T: Start up in target disk mode. Disabled when using a firmware password.
    • Command-V: Start up in verbose mode. Disabled when using a firmware password.
    • Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. Disabled when using a firmware password.

    If a key combination doesn't work

    If a key combination doesn't work at startup, one of these solutions might help:

    • Press and hold all keys in the combination together, not one at a time.
    • Shut down your Mac. Then press the power button to turn on your Mac. Then press and hold the keys as your Mac starts up.
    • Wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.
    • If you're using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac.
    • If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.

    Remember that some key combinations are disabled when your Mac is using a firmware password.

    Learn more

    Howahkan Mac Os Catalina

    • Keyboard shortcuts that you can use after your Mac has started up.