Clean Hard Drive Mac Os X

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Jan 07, 2016  3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on. The Security button and set the Zero Data option to one-pass. The Erase button and wait until the process has completed. Quit DU and return to the main menu. Reinstall OS X: Select Reinstall OS X.

Reinstall from macOS Recovery

macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.

  • Jul 23, 2016  How to Securely Wipe an iMac or Mac OS X Based System Hard Drive. Read this if you would like to learn how to securely wipe an iMac or later Apple-based hard drives/partitions. This information is useful for clearing out any private data.
  • Jul 06, 2020  Once the boot process finishes, your Mac will display the OS X utility window. Before we can clean install OS X El Capitan, we must first erase the current startup drive that holds the older version of OS X. Select the Disk Utility option, then select Continue.
  • Install from installer drive. Now we are ready to install the copy of macOS from the installer drive on our Mac. If you want to do a fresh installation (and completely wipe your Mac) it's time to.

1. Start up from macOS Recovery

To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.

Command (⌘)-R

Reinstall the latest macOS that was installed on your Mac (recommended).

Option-⌘-R

Upgrade to the latest macOS that is compatible with your Mac.

Shift-Option-⌘-R

How To Clean Mac Drive

Clean macbook hard drive

Reinstall the macOS that came with your Mac, or the closest version still available.

You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.

When you see the utilities window, you have started up from macOS Recovery.

2. Decide whether to erase (format) your disk

Clean Up Hard Drive Mac Os X

You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.

3. Install macOS

Mac Os X Clean Install

When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.

  • If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
  • If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
  • If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
  • If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.

Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

Drive

If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.

macOS Recovery exceptions

The version of macOS offered by macOS Recovery might vary in some cases:

  • If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
  • If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
  • If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
  • If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.

If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.

Other ways to install macOS

  • You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
  • Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.
Clean

As well know, Mac OS X is an operating system developed by Apple Inc. While the Mac OS X is traditionally viewed as being simpler and less complex than the Windows alternative, the hard drive in your Mac computer can still become slow if bogged down by too many files and folders. Many people are big fans of Apple products and Mac is just the apple of their eyes. If you wanna keep your Mac working as the time you bought it, you should learn some instructions to clean up a Mac OS X hard drive and delete extraneous files to free up space and help your Mac run faster.

Instructions

Clean Up Mac Hard Drive

Empty your Mac OS X trash bin. The Trash of Mac OS X is just the Recycle Bin in Windows where all waste will go to. Therefore, when you delete an item on a Mac, it is placed in the 'Trash' in your Mac OS X dock. However, it still takes up hard drive space until you clean out the Mac hard drive by emptying the trash. In the 'Finder,' click 'Finder' in the top menu bar and select 'Empty Trash' from the drop-down menu.

Archive files that you do not regularly use. This consolidates multiple files and folders into a single file, and also compresses the data size so that it takes up less room on your Mac OS X hard drive. Drag any documents, pictures or folders into a single file. Right-click on the folder and select 'Archive' from the pop-up menu. Mac OS X will compress each individual file into a single file. Optionally, drag this archived file onto a backup volume (such as a blank CD) and delete the original off of your Mac OS X hard drive.

Mac Os Hard Drive

Run a cleanup software program like EaseUS CleanGenius to delete unused system files and logs that may be taking up space on your Mac OS X hard drive. Its free version – EaseUS CleanGenius can quickly scan your Mac OS X drive for unused system folders and erases them.

Erasing Hard Drive And Reinstalling Mac Os X

Uninstall unused applications. Over the course of time, you may have cluttered your Mac OS X hard drive with various software installations. Click 'Applications' in your dock and drag any unused programs to the trash bin. Don't forget to empty the trash.

In addition, files in Mac are also of great importance. Backup your hard drive. This helps protect your personal files if you accidentally delete a file by accident while cleaning up the Mac OS X hard drive. Use a portable hard drive or flash disk, blank CDs or DVDs, or an online backup service.