On an Intel-based Mac
- Command (⌘)-R: Start up from the built-in macOS Recovery system.
- Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes.
- Option-Command-P-R: Reset NVRAM or PRAM.
- Shift (⇧): Start up in safe mode.
- D:
Contents
What is the Command-r key?
Alternatively referred to as Cmd+R, Command+R is a keyboard shortcut most often used to refresh the page in an Internet browser. How to use the Command+R keyboard shortcut.
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.
Is Nvram safe to reset?
In the instance that PRAM/NVRAM information has become corrupted, resetting the PRAM/NVRAM may be a necessary solution. Unless reset, your Mac may use the incorrect settings, behave abnormally, or not even start up! We recommend a wired keyboard since wireless keyboards don’t always work for NVRAM resets.
What happens when you reset the PRAM on a Mac?
When you reset the PRAM or NVRAM, your computer restores the default settings for your hardware and sets the internal hard drive as the startup disk. Performing a reset requires you to shut down your computer. While booting, hold down the “Command-Option-P-R” keys immediately after you turn on your computer.
How do you press Command R on a Mac?
Here is how to boot into Recovery Drive on an Intel Mac:
- Shut down your Mac.
- Hold down the Command and R keys down and press the Power button.
- Keep holding Command and R until the Apple logo appears on the screen.
- You should see a screen saying macOS Utilities (or if your Mac is older, OS X Utilities).
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.
Does recovery mode delete 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.
What came after Mac Sierra?
Apple has announced the launch of its new operating system, macOS 10.15 Catalina on October 7, 2019. In keeping with Apple’s release cycle, macOS 10.12 Sierra will no longer be receiving security updates. Sierra was replaced by High Sierra 10.13, Mojave 10.14, and the newest Catalina 10.15.
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.
How do you zap a PRAM?
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart. On Mac computers that play a startup sound, you can release the keys after the second startup sound.
How do I know if Mac has T2 chip?
Press and hold the Option key while choosing Apple menu > System Information. In the sidebar, select either Controller or iBridge, depending on the version of macOS in use. If you see “Apple T2 chip” on the right, your Mac has the Apple T2 Security Chip.
Does resetting PRAM and NVRAM delete files?
NVRAM stores peripheral data such as volume, display resolution and brightness, startup-disk selection, and time settings. Resetting the NVRAM is a quick, easy, way to troubleshoot a misbehaving Mac—it doesn’t delete any data from your storage drive, and it doesn’t require any tools or repair experience.
Does resetting SMC delete everything?
Resetting the SMC will not delete any saved data on the computer, but rather reset certain settings on the computer; ultimately speeding up your Mac.
How do you zap PRAM on a Mac?
How do you zap the PRAM?
- Boot the computer and immediately hold down the following key combinations: COMMAND-OPTION-P-R.
- The computer will re-boot and you will hear a chime.
- Release the keys and allow the computer to boot normally.
- The PRAM has now been zapped.
How do I know if PRAM has been reset?
How do you know if your PRAM is reset? On older Macs, you will hear the second startup chime when your PRAM has been reset. Whereas, on newer Macs with T2 Security Chip, the Apple logo will appear and disappear for the second time. Thus, signaling that the PRAM has been reset.
Will reinstalling macOS delete files?
Technically speaking, simply reinstalling macOS won’t erase your disk either delete files. You probably don’t need to erase, unless you’re selling or giving away your Mac or having an issue that requires you to wipe.
How do I turn off Internet Recovery on Mac?
Answer: A: Restart the computer holding down the command – option/alt – P – R keys before the gray screen appears. Continue to hold until you hear the startup chime for the second time. Try a SMC reset.
Why does my Mac have Macintosh HD and Macintosh HD data?
Answer: A: That’s normal. The Mac HD – Data volume is where your files and apps are kept and you have access to them just like the older system volumes. The Macintosh HD volume is where the system and system support files are kept and the user has no access to them.
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.
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.