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.
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What does Command Option R do on Mac?
Command-R restores the latest macOS that was installed on your Mac without upgrading to a later version. Option-Command-R upgrades to the latest macOS that is compatible with your Mac. Shift-Option-Command-R restores the macOS that came with your Mac or the version closest to it that is still available.
What does Command R do?
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 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.Scan, verify and repair connected drives with Disk Utility. Erase, install or reinstall factory-preloaded OS X version.
How do I boot my Mac into recovery mode?
Reboot your Mac. Hold down Option/Alt-Command-R or Shift-Option/Alt-Command-R to force your Mac to boot into macOS Recovery Mode over the internet. This should boot the Mac into Recovery Mode.
Why does my Mac have Macintosh HD and Macintosh HD data?
Macintosh HD — The storage drive volume where macOS files and apps are stored.Macintosh HD Data — The storage drive volume where Mac user data is stored. The volume has read-write access, enabling Mac users to manage their files.
Does reinstalling macOS delete data?
Reinstalling macOS from the recovery menu does not erase your data. However, if there is a corruption issue, your data may be corrupted as well, its really hard to tell.
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.
How do I refresh my browser on Mac?
Chrome and Mac:
- Hold down Shift and click the Reload button.
- Or Hold down Command, Shift and click the ‘R’ key.
What does command r do in Google Sheets?
Ctrl+Option+I, then R: Insert rows above. Ctrl+Option+I, then W: Insert rows below. Ctrl+Option+I, then C: Insert columns to the left. Ctrl+Option+I, then O: Insert columns to the right.
How can I tell if I am in safe mode Mac?
To check if you are in Safe Mode follow these steps:
- Click on the Apple logo in the menu (top left).
- Click in About This Mac.
- Click on System Report.
- Click on Software and check what the Boot Mode is listed as – it will say Safe if you are in Safe Mode, otherwise it will say Normal.
Will recovery mode erase everything Mac?
A: No, recovery mode does not delete anything on a Mac. It will just sit there and do nothing until you make it do something. Apple: The utilities in macOS Recovery help you restore from Time Machine, reinstall macOS, get help online, repair or erase a hard disk, and more.
When should I use Mac recovery?
When to Use Recovery Mode in macOS
- Wipe your computer to pass it on or sell it.
- Troubleshoot issues like startup failures.
- Use Disk Utility to perform repairs when there are issues with your disk, or the Disk Utility tool couldn’t repair issues with your drive.
- Go back to an older version of macOS.
How do you restart a frozen Mac?
Restart. If Force Quit doesn’t bail you out, try rebooting the computer. If a frozen Mac prevents you from clicking the Restart command on the Apple menu, hold down the power button for several seconds or press the Control+Command keys and then press the power button.
What happens if I delete Macintosh HD?
You won’t lose your own files, or apps that you might have installed. This reinstall just copies a fresh set of your operating system files. Then, restarts, finishes the install with those downloaded files. The install process might take more than 30 minutes, but you should boot back into your hard drive, no harm done.
What happens if I delete Macintosh HD data?
If the former, then the volume is still present. You can restore its content from your backup. However, if it’s the latter, then you need to reinstall macOS. If you have no backup, then your data are gone, and you need to reinstall macOS.
Do I delete Macintosh HD or Macintosh HD data?
Why should you delete the Macintosh HD – Data? Because the Macintosh HD – Data volume of the previous macOS will be retained after downgrading macOS. And system downgrading will also form a new Macintosh HD – Data volume. Then, there are two Macintosh HD – Data volumes, which may arise some problems.
How do I reinstall macOS without losing data?
Option #1: Reinstall macOS without Losing Data From Internet Recovery
- Click the Apple icon>Restart.
- Hold down the key combination: Command+R, you will see the Apple logo.
- Then choose “Reinstall macOS Big Sur” from utilities window and click “Continue”.
Will reinstalling macOS remove malware?
Consider a factory reset
If none of the methods above worked, the only way to clear the malware infection is to factory reset your operating system. To do this, hold down Command+R to enter Recovery Mode, wipe the hard drive with Disk Utility, and reinstall macOS.
Will reinstalling macOS make it faster?
You might need to remove some startup programs, run updates on your system, or clean out your storage drive to fix this issue. But if none of these fixes have an effect, reinstalling macOS can likely help speed up your system. This is especially the case if your Mac is approaching a decade of life.
How long is Internet Recovery Mac?
5) After your Mac has connected to the Wi-Fi network, it’ll download a recovery system image from Apple’s servers and start from it, giving you access to the recovery tools. Depending on your Internet connection, this may take anywhere from a couple of minutes to up to an hour, or longer.