How to uninstall an operating system on a Mac?

How do I erase my Mac and reinstall the operating system?

Select your startup disk on the left, then click Erase. Click the Format pop-up menu (APFS must be selected), enter a name, then click Clear. After the disk is erased, choose Disk Utility > Quit Disk Utility. In the recovery application window, select “Reinstall macOS,” click Continue, then follow the onscreen instructions.

How to remove old versions of OSX?

Mac OS X 10.3 Panther® or later:

  • Using your administrator account, drag the Previous Systems folder to the Trash.
  • Type your administrator password when prompted to authenticate this operation.
  • Empty the bin.
  • How do I restore my Mac to factory settings?

    How to Factory Reset: MacBook

  • Restart your computer: press and hold the power button > select Restart when it appears.
  • While the computer is restarting, hold down the ‘Command’ and ‘R’ keys.
  • Once you see the Apple logo appear, release the “Command and R keys”
  • When you see a Recovery Mode menu, select Disk Utility.
  • 1 month. 2021 .

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    How do I uninstall a software update on a Mac?

    Click the Apple () icon in the upper left corner of your screen, then select and click System Preferences… from the drop-down menu. Click App Store in the System Preferences menu. Uncheck Download new updates available in the background by clicking the blue box with the white checkmark.

    Can you remove previous Mac updates?

    Click the Manage button, then iOS Files on the left panel to view the local iOS backup files you have stored on your Mac. If you no longer need them, highlight them and click the Delete button (then Delete again to confirm your intention to permanently delete the file).

    How do I remove junk files from my Mac?

    What are user cache files and how do I delete them?

  • Open the Finder.
  • Press Command+Shift+G.
  • Enter the following command in the field and select Go: ~/Library/Caches .
  • In the window that appears, you will see all your cache files.
  • Press Command + A to select all files and delete them.
  • 3 days. 2019 .

    Do Macs have System Restore?

    Unfortunately, Mac does not provide system restore option like its Windows counterpart. However, if you use Mac OS X along with an external drive or AirPort Time Capsule, a built-in backup feature called Time Machine can help you achieve your goals.

    How to Restore Internet on a Mac?

    Here’s how to use macOS Internet Recovery:

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  • Shut down your Mac.
  • Hold down Command-Option/Alt-R and press the power button. …
  • Hold down these keys until you see a spinning globe and the message “Starting Internet Recovery.” …
  • The message will be replaced by a progress bar. …
  • Wait for the MacOS Utilities screen to appear.
  • 1 month. 2021 .

    Where is Recovery on Mac?

    How to Boot Mac into Recovery Mode

  • Click on the Apple logo at the top left of the screen.
  • Select Restart.
  • Immediately hold down the Command and R keys until you see an Apple logo or a spinning globe. …
  • Eventually, your Mac will display the Recovery Mode Utilities window with the following options:
  • 2 heb. 2021 .

    How do I factory reset my IMAC 2014?

  • Restart the Mac in recovery mode (hold down the command and R key while restarting).
  • Use Disk Utility to erase the hard drive. Click Disk Utility > Continue. Select the primary volume and click Unmount then Erase). …
  • Click Reinstall OS X and continue. Follow the instructions to reinstall Mac OS X.
  • 23 avril. 2016 г.

    How to restart a Mac desktop?

    To restart a Mac computer, you have three choices:

  • Press the power button (or press Ctrl+Eject) and when a dialog box appears, click the Restart button.
  • Choose the Apple Key, then click Restart.
  • Press Ctrl+Command+Eject (or Ctrl+Command+Power button).
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