How do I wipe my Mac and reinstall OS X?

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How do I wipe my Mac and reinstall OS X?

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 do I wipe my Mac OS X 10.5 hard drive?

Helpful answers

  1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
  2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu.
  3. Click the Erase tab.

How do I reinstall Mac OS X step by step?

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  1. Turn on your Mac and press and hold Cmd+R.
  2. Release the keys when you see the Apple logo.
  3. Choose if you want to erase your disk.
  4. Click to select Reinstall macOS.
  5. Click Continue.
  6. Follow the on-screen instructions to reinstall macOS including where to install it.

How do I completely wipe my Mac for a new user?

Turn on your Mac and immediately press and hold these four keys together: Option, Command, P and R. Release the keys after about 20 seconds. This will clear user settings from the memory and restore certain security features that may have been altered previously.

Does reinstalling Mac delete everything?

Answer: A: 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.

How do I factory reset my iMac 2011?

After the iMac shuts down completely but before it begins to restart, hold down the Command (⌘) and R keys at the same time. The Mac will display the macOS Utilities menu, from which you can reinstall Mac OS.

How do I install Sierra on an old Mac?

Open the macOS High Sierra Patcher tool, navigate to the High Sierra Installer App, then select your pen drive and click “Start Operation”. Boot from the USB drive by holding down the option key after reboot. Install macOS normally, reboot back on the installer drive, and then open the “macOS Post Install” application.

How do I reformat a Mac hard drive?

How to format an external drive in OS X

  1. Connect the drive to the Mac.
  2. Open Disk Utility.
  3. Select the drive you want to format.
  4. Click Erase.
  5. Give the drive a descriptive name and leave the default settings: OS X Extended format and GUID partition map.
  6. Click Erase and OS X will format the drive.

How do I wipe my 2011 iMac?

How to Wipe a Mac With an M1 Chip

  1. Turn on your Mac and continue to press and hold the power button until the startup options window comes up.
  2. When the Utilities window appears, select Disk Utility.
  3. In the sidebar, choose Macintosh HD.
  4. Click the “Erase” button, then select a file system format and enter a name for it.

How do I reset my Mac desktop to factory settings?

Turn on your Mac 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.

How to reinstall Mac OS on your Mac?

Restart your Mac and then hold down ⌘+R to activate Recovery Mode.

  • In the first window,select Reinstall macOS ➙ Continue.
  • Agree to the Terms&Conditions.
  • Select the hard drive you’d like to reinstall mac OS Catalina to and click Install.

    • How to reinstall Mac OS without losing data?

    Download the macOS Big Sur install from Mac App Store onto your Mac;

  • Then connect the USB flash drive to your Mac;
  • Open Disk Utility program on your Mac,choose the USB flash drive and click Erase to have a clean drive for the reinstallation;

    • How to erase your Mac and reinstall macOS?

    The first step is to start your Mac in Recovery Mode. To do that,shut down your Mac and then restart it while holding the CMD+R keys.

  • Now,you are booted into the recovery mode. Here,click on the Disk Utility option.
  • If you are running macOS Catalina,it will show up two partitions: Macintosh HD and Macintosh HD – Data.

    • How to do a System Restore on Mac securely?

    – Part 1: First and Most Important: Backup Your Mac before System Restore – Part 2: Sign Out of Apps – Part 3: Securely Wipe Out Your Hard Drive – Part 4: Reinstall Mac Operating System – Bonus Tip: How to Recover Lost Data After System Restore