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How do I reinstall my Mac computer?
Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions. Follow these guidelines during installation: If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
How do I wipe my Mac and start fresh?
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after about 20 seconds. This clears user settings from memory and restores certain security features that might have been altered.
Does reinstalling Mac delete everything?
Reinstalling Mac OSX by booting into the Rescue drive partition (hold Cmd-R at boot) and selecting “Reinstall Mac OS” does not delete anything. It overwrites all system files in-place, but retains all your files and most preferences.
How do I restore my Mac to factory settings?
How to Factory Reset a Mac or MacBook (macOS Monterey)
- Click the Apple icon in the menu bar (top-left corner).
- Select System Preferences from the drop-down menu.
- Select ‘Erase All Contents and Settings. ‘
- Enter your password, select ‘OK. ‘
- Select the ‘Erase All Content & Settings’ button.
How do I wipe my Mac and reinstall from scratch?
Restart your Mac. Choose Apple menu > Shut Down, press and hold the power button until “Loading startup options” appears, select Options, click Continue, then follow the onscreen instructions. In the Recovery app window, select Reinstall for your macOS release, click Continue, then follow the onscreen instructions.
How long does it take to reinstall macOS?
Typically, if you have a stock 5400 rpm drive, it takes about 30 – 45 minutes using a USB installer. If you are using the internet recovery route, it can take over an hour, depending on speed of internet etc. If you have a SSD using a USB installer, it typically takes 15 minutes or so.
What does reinstall macOS mean?
2 Answers. 2. 27. It does exactly what it says it does–reinstalls macOS itself. It only touches operating system files that are there in a default configuration, so any preference files, documents and applications that are either changed or not there in the default installer are simply left alone.
How long does reinstalling macOS take?
Will a factory reset remove viruses Mac?
The recovery partition is part of the hard drive where your device’s factory settings are stored. In rare cases, this can become infected with malware. Hence, doing a factory reset will not clear the virus.
Do Macs have System Restore?
Unfortunately, Mac does not provide a system restore option like its Windows counterpart. However, if you are using Mac OS X as well as an external drive or AirPort Time Capsule, a built-in back up feature called Time Machine may help you achieve your ends.