How To Erase Your Hard Drive

  • January 12, 2010
  • 1,901 Views
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Prevent identity theft by thoroughly erasing the information contained on your hard drive.

You Will Need

  • A computer with internet access
  • A drive-erasing tool
  • A blank CD or USB drive
  • An external hard drive (optional)
How To Erase Your Hard Drive: Back up everything

Step 1: Back up everything

Before you erase your hard drive, back up everything you want to save on CDs or an external hard drive.

How To Erase Your Hard Drive: Download a drive-erasing tool

Step 2: Download a drive-erasing tool

For a PC, download a dedicated drive-erasing tool for free online.

Look for a tool that is recommended on reputable tech web sites or by the manufacturer of your computer.

How To Erase Your Hard Drive: Create a boot disk

Step 3: Create a boot disk

Create a boot disk using a CD or USB drive by following the instructions from the drive-erasing tool.

How To Erase Your Hard Drive: Follow instructions

Step 4: Follow instructions

Read and follow the instructions for the drive-erase tool to erase the hard drive by overwriting the data.

How To Erase Your Hard Drive: Erase a Mac hard drive

Step 5: Erase a Mac hard drive

Erase the hard drive on a Mac by going to Applications, Utilities, and opening the Disk Utility. Select the drive in Disk Utility, click the Erase tab, then Erase Free Space.

How To Erase Your Hard Drive: Using Disk Utility

Step 6: Using Disk Utility

In the popup menu, choose Zero Out Deleted Files, 7-Pass Erase, or 35-Pass Erase. 7-pass takes seven times longer than the zero out option, and 35-Pass takes 35 times as long, since they write over the disk seven and 35 times, respectively, ensuring you have thoroughly cleaned the drive.

Did you know? Gilbert Hyatt at Micro Computer Company patented the microprocessor in 1971.

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