- First, completely shut down your Mac via the Apple Toolbar.
- Then, hold down Command, Option, P, and R buttons on your keyboard as you restart your Mac. …
- After the second chime, let go of the buttons and let your Mac restart as normal.
How do I force my Mac to reinstall?
- Command + Option + R will reinstall the latest version of macOS compatible with your Mac (in most cases). …
- Command + Option + Shift + R will try to reinstall the version of macOS or OS X that was initially installed on your Mac when it was newly purchased.
Why is Mac installer not working?
The usual cause is a simple one; your Mac isn’t connected to your local network and the Recovery process is trying to access Apple’s servers to download the software needed for installation. Instead of telling you your Wi-Fi or Ethernet network isn’t working, the installer displays the above message.
What do you do when macOS X installation Cannot be completed?
- Shut down your Mac and wait 10 seconds.
- Restart your Mac while holding down Shift.
- Let go of Shift when you see the login window.
- Log in. You might have to log in more than once and should see “Safe Boot” in the top corner of the login window.
Can I completely wipe my Mac?
You can wipe your Mac computer — or, in other words, factory reset it — through the macOS Utilities menu. This is a good plan if your Mac is malfunctioning, or you’re looking to sell it. Doing this will wipe all of your personal data and applications. It’ll be like you just turned on your Mac for the first time.
How do I format my Mac hard drive and reinstall OS?
Start your Mac and hold down the Command + R key combination. That brings up OS X Utilities. Select Disk Utility and click Continue. Select the local drive and click the Erase tab, Format should be set to Mac OS Extended (journaled), the click the Erase button.
How do I boot my Mac into recovery mode?
- Click the Apple logo on your desktop.
- Click Restart.
- Immediately hold down the Command and R keys until you see an Apple logo or spinning globe appear.
- Choose from the Recovery Mode utility options.
Why won't my Mac go past the loading screen?
If your Mac is stuck on this screen Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off. Then turn your Mac back on. … If the issue persists, once again press and hold the power button until your Mac turns off. Then use Disk Utility to repair your startup disk.
How do I reinstall OSX without disc?
- Shut down your Mac.
- Hold down Command-Option/Alt-R and press the Power button. …
- Hold down those keys until you a spinning globe and the message “Starting Internet Recovery. …
- The message will be replaced with a progress bar. …
- Wait for the MacOS Utilities screen to appear.
Does reinstalling Mac delete everything?
No. Reinstalling macOS does not have to wipe all other data that you have stored. It is often recommended to reinstall macOS on top of the current installation. It is done from the Recovery partition using the same Command-R reboot.
How do I restore my IMAC to factory?
To reset your Mac, first restart your computer. Then press and hold Command + R until you see the Apple logo. Next, go to Disk Utility > View > View all devices, and choose the top drive. Next, click Erase, fill out the required details, and hit Erase again.
How do I reinstall Mac OS from USB?
Reinstall macOS Insert the USB drive and power up the machine. Hold the Option key as you do so, then release the Option key when a dark screen appears displaying your bootable volumes. Select the volume for your bootable USB drive, then click the up arrow or press Return. Your Mac will then reboot.
How do I restore my Mac using Disk Utility?
- In the Disk Utility app on your Mac, choose View > Show All Devices. …
- In the sidebar, select the volume you want to restore, then click the Restore button . …
- Click the Restore pop-up menu, then choose the volume you want to copy.
- Click Restore, then click Done.
Is erase all content and settings the same as factory reset?
Reset all Settings removes things like your Wifi password and settings you’ve set on your iPad for Apps, mail, etc. Erase All Content and Settings restores a device to it’s out of the box state when it was first turned on.
What is the order of macOS releases?
Version | Codename | Release date |
---|---|---|
macOS 10.12 | Sierra | September 20, 2016 |
macOS 10.13 | High Sierra | September 25, 2017 |
macOS 10.14 | Mojave | September 24, 2018 |
macOS 10.15 | Catalina | October 7, 2019 |
How long does it take to reinstall macOS?
macOS generally takes 30 to 45 minutes to install. That’s it. It doesn’t “take so long” to install macOS. Anyone making this claim has clearly never installed Windows, which not only generally takes over an hour, but includes multiple restarts and babysitting to get to completion.
How do I reinstall OSX without recovery mode?
Restart your Mac while holding down the ‘Option+Command+R’ keys. Release these keys as soon as you see the Apple logo. Once your Mac boots, you should see a spinning globe and the message ‘Starting Internet Recovery.
Does a factory reset delete everything?
A factory data reset erases your data from the phone. While data stored in your Google Account can be restored, all apps and their data will be uninstalled. To be ready to restore your data, make sure that it’s in your Google Account.
How do I factory reset my 2009 MacBook?
- Shut down your Mac.
- Reboot while holding down these keys together: Option-Command-R.
- Release the keys when you see the Apple logo or a spinning globe.
- Use Disk Utility to erase the internal hard drive.
- Reinstall macOS onto the newly-erased hard drive.
How do I wipe my 2011 iMac?
- Turn on your Mac and continue to press and hold the power button until the startup options window comes up. …
- When the Utilities window appears, select Disk Utility.
- In the sidebar, choose Macintosh HD.
- Click the “Erase” button, then select a file system format and enter a name for it.
How do you wipe a computer clean to sell it?
- Open Settings and select Update & Security.
- Click the Recovery tab, then Get Started.
- Select Remove everything.