What does command option R do on Mac?

To start Internet Recovery Mode,

Go to the Apple menu.
Click Restart or power on your Mac.
Hold down the Command – Option – R keys immediately after your Mac starts.
Release the keys when the globe appears on the screen.
Wait for the Wi-fi menu to appear.

What does command R mean?

Alternatively referred to as Cmd+R, Command+R is a keyboard shortcut most often used to refresh the page in an Internet browser. Command+R in Microsoft PowerPoint. Command+R in Word and other word processors. Related keyboard shortcuts and keys.

What is r command?

Alternatively referred to as Cmd+R, Command+R is a keyboard shortcut most often used to refresh the page in an Internet browser.

What is Command Shift R?

What is Ctrl+Shift+R? Ctrl+Shift+R is a keyboard shortcut used to perform a hard reload of a web page in Google chrome.

What is recovery mode Mac?

Recovery Mode is a special mode that loads macOS’ built-in recovery tools from a special disk partition that holds a recovery image along with a copy of the macOS installer. Erase, install or reinstall factory-preloaded OS X version. Restore your Mac from a Time Machine backup.

How do I reset a Mac Air?

How to reset a MacBook Air or MacBook Pro

Hold down the Command and R keys on the keyboard and turn on the Mac.
Select your language and continue.
Choose Disk Utility and click Continue.
Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.

Where is command R on Mac?

Choose Option-Command-R as soon as the restart begins, and hold it down until you see the Apple logo. This will then automatically upgrade your Mac to the latest version of macOS that it can support. Alternatively, you can choose to press Shift-Option-Command-R.