How to erase a 2008 imac hard drive?

Open Disk Utility from the OS X Utilities window, then use Disk Utility to erase your built-in hard disk using the OS X Extended (Journaled) format. Quit Disk Utility when done. Choose Reinstall OS X from the OS X Utilities window, then follow the onscreen instructions.

Amazingly, how do I erase the hard drive on an old iMac?

  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.

You asked, how do I factory reset my 2008 iMac without CD? Select the hard drive on which Mac OS X is installed from the tree list on the left side of the window. Open the “Erase” tab. Select “Mac OS Extended (Journaled)” from the “Format:” drop menu and enter a name for the hard drive in the “Name:” text entry field. Click “Erase…” to clear all of the hard drive’s contents.

Quick Answer, how do I clear everything off my imac?

Moreover, how do I clean up my imac hard drive?

  1. Clean up cache. You’ve probably heard “Remove your cache” as a web browser troubleshooting tip.
  2. Uninstall apps you don’t use.
  3. Clean out useless duplicates.
  4. Empty the Trash.
  5. Reduce clutter.
  6. Delete large and old files.
  7. Remove old iOS backups.
  8. Wipe out Language files.

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 factory reset my 2008 iMac keyboard?

  1. Start you Mac while pressing the Option key (in your Windows keyboard press the Alt key) until the Startup Manager appears:
  2. Select Recovery HD and then click the upward-pointing arrow below it to boot from Recovery HD.
  3. After a brief delay, you’ll see the Mac OS X Utilities screen.

How do I factory reset my Mac 2008?

To do so, shut down your Mac, then turn it on and immediately press and hold four keys together: Option, Command, P, and R. You can release the keys after 20 seconds or so. That’s it!

How do you delete a file that won’t Delete on a Mac?

Type in “rm -f ” without the quotation marks, and with the space after the f. Then find the file that wont delete, and drag it to the Terminal window, and the path to that item should appear. Double check that this is the thing you want to delete, then press enter.

How do you wipe a computer clean to sell it?

  1. Open Settings.
  2. Tap System and expand the Advanced drop-down.
  3. Tap Reset options.
  4. Tap Erase all data.
  5. Tap Reset Phone, enter your PIN, and select Erase Everything.

How do I delete administrator account on Mac?

  1. Locate Users & Groups on the bottom left.
  2. Select the padlock icon.
  3. Enter your password.
  4. Select the admin user on the left and then select the minus icon near the bottom.
  5. Choose an option from the list and then select Delete User.
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How do I clean up my Mac to make it run faster?

  1. Clean up system files and documents. A clean Mac is a fast Mac.
  2. Detect & Kill Demanding Processes.
  3. Speed up startup time: Manage startup programs.
  4. Remove unused apps.
  5. Run a macOS system update.
  6. Upgrade your RAM.
  7. Swap your HDD for an SSD.
  8. Reduce Visual Effects.

How do you restore Internet on a Mac?

  1. Shut down your Mac.
  2. Hold down Command-Option/Alt-R and press the Power button.
  3. Hold down those keys until you a spinning globe and the message “Starting Internet Recovery.
  4. The message will be replaced with a progress bar.
  5. Wait for the MacOS Utilities screen to appear.

How do I clean my Mac for free?

  1. Clean User Cache. Go to /Library/Caches and selectively delete or delete all the files and then empty your trash bin.
  2. Clean System Logs.
  3. Remove Mail Attachments.
  4. Remove old iOS data.
  5. Remove incomplete downloads on iTunes.
  6. Empty Trash Bin.
  7. Remove Malware.
  8. Remove Browser Cache.

How do I restore my 2009 iMac to factory settings?

  1. Shutdown iMac.
  2. Unplug power cord from back of iMac.
  3. Press and hold power button for 20 seconds.
  4. Restore power cord; power on iMac.
  5. Immediately on hearing Startup Chime, press and hold Command-Option-P-R keys (⌘⌥ P R)

How do I factory reset my iMac 2021?

  1. In the Apple menu in the top left corner of the screen, choose Restart.
  2. As the system is restarting, hold both the Command and R keys on the keyboard at the same time until you see the Recovery Mode window.
  3. Enter your admin password to confirm the action.
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How do I restore my iMac to factory settings without CD?

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