How do I wipe my Mac hard drive without losing OS?

How do I wipe my Mac hard drive without erasing operating system?

You can’t erase everything without erasing OS X, but you can remove any existing user folder and its content: Open Users & Groups preferences. Click on the lock icon to authenticate. Click on the Add [-] button to create a new user account with admin status.

What happens if you erase your Mac hard drive?

Make a backup of any files that you want to keep. Erasing your Mac permanently deletes its files.

Does Secure Erase remove operating system?

Using a tool like DBAN erases the hard drive completely. It’s easy, and every single bit of every single byte — operating system, settings, programs, and data — is removed from the hard drive… … Then, if you like (and if you can), reinstall the operating system from an install disk.

How do I wipe my hard drive but keep operating system?

Press Windows Key + I, type recovery in the search bar, and select Reset this PC. Next, select Remove everything, then Remove files and clean the drive. The Windows 10 reset function can take a while to complete, but it will make sure there is no chance for anyone to recover data from your drive.

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How do you clear everything off a Mac?

How to Wipe a Mac Hard Disk Drive (HDD)

  1. Make sure your Mac is turned off.
  2. Press the power button.
  3. Immediately hold down the command and R keys.
  4. Wait until the Apple logo appears.
  5. Select “Disk Utility” from the OS X Utilities list. …
  6. Select the disk you’d like to erase by clicking on it in the sidebar.

How do I completely wipe my Mac?

How to wipe a Mac computer with a factory reset

  1. Turn your Mac computer off.
  2. Press the power button to turn it on, then immediately press and hold Command (⌘) + R. …
  3. After a few moments, the macOS Utilities window should appear — this is known as Recovery Mode.
  4. Select “Disk Utility” and click “Continue.”

18 окт. 2019 г.

How do I wipe my Mac before selling it?

What to do before you sell, give away, or trade in your Mac

  1. Create a backup. Make sure that you have a current backup of your important files. …
  2. Sign out of iTunes in macOS Mojave or earlier. …
  3. Sign out of iCloud. …
  4. Sign out of iMessage. …
  5. Reset NVRAM. …
  6. Optional: Unpair Bluetooth devices that you’re keeping. …
  7. Erase your hard drive and reinstall macOS.

4 июн. 2020 г.

Does formatting a drive delete the OS?

One way to delete data is to format a drive, using the same command you would use to prepare the drive for a new installation of the operating system. While a formatted drive appears empty, however, the data that used to reside there may be recoverable, given the right tools.

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How long does Secure Erase take?

I’d read in a site that typically it takes 0.314 minutes/GB per pass. So a 1tb hdd would take a time of 1024 x 0.314 = 321.53 minutes for 1 pass and for a 7 pass it’d take roughly 2250.75 minutes which is 37.5 hrs which is 1.5 days.

What does a secure erase do?

If you delete everything from a hard disk on a phone or PC, write over every sector with junk data, and then delete that, the original deleted data becomes virtually unrecoverable. Multiple cycles of this constitute secure deletion compliant with British and US government guidelines.

What is the best way to destroy a hard drive?

What is the Best Way to Destroy a Hard Drive?

  1. Shred it. Whilst possibly the most effective way to destroy a hard drive is to shred it into a zillion pieces, there are not many of us who have an industrial shredder at our disposal at any given time. …
  2. Bash it with a Hammer. …
  3. Burn It. …
  4. Bend it or Crush It. …
  5. Melt/Dissolve it.

6 февр. 2017 г.

Does Windows 10 reset wipe hard drive?

Wipe Your Drive in Windows 10

With the help of the recovery tool in Windows 10, you can reset your PC and wipe the drive at the same time. Go to Settings > Update & Security > Recovery, and click Get Started under Reset this PC. You are then asked if you want to keep your files or delete everything.

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