
Your computer stores data on its hard drive. Backing up the hard drive is a precaution users may take in order to minimize data loss in the event that the hard drive becomes compromised, damaged or unusable. These days, hard drives are capable of storing vast quantities of data, exceeding the size of rewritable CDs and flash drives. That is why an external hard drive is the most thorough method to use to back up your computer's hard drive. Both PCs and Macs have pre-loaded software that will help you back your data up to an external hard drive.
Instructions
Back Up For PCs
Plug your external hard drive into a power source. Insert the external hard drive's USB or Firewire cable, depending on the model of external hard drive, into the respective port on your computer.
Click "Start." Point to "Accessories," then "System Tools" and then click "Backup."
Click "Next" on the "Backup or Restore Wizard" screen that appears.
Make sure that the "Back up files and settings" option is selected. Click "Next."
Select the "All information on this computer" option from the "What to Back Up" box. Click "Next."
Select your external hard drive on the menu asking to "Choose a place to save your back up." Provide a name for your back up in the field provided. Click "Next."
Click "Finish" on the "Completing the Backup or Restore Wizard" page. Click "Close" once the back up is complete.
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