Due to the way data is written to a hard drive, format or Fdisk alone is not sufficient to remove data. After formatting, data may remain in bad blocks and spare blocks and can be recovered by simply reallocating spare blocks or unmarking bad blocks.   Software solutions are the preferred method for sanitizing expensive hard drives for redeployment, lease return or sale in the secondary market.

If your donating used PCs to charity, make sure you sanitize the machines first in order to avoid exposing sensitive or confidential data to prying eyes. It is NOT sufficient to merely delete files. Either remove the hard drive altogether, or utilize proper methods for removing the data from the drives. 

To properly sanitize a drive, ALL data must be removed and overwritten at every addressable location on the media. An effective Solution writes to active and inactive file space, bad sectors and tracks, the space between the end of a file and the end of a block or sector, file allocation tables, directories and block maps. This process assures information is unrecoverable by technical means.

Computers contain information that must be kept confidential application data, licensed software, licensing keys, passwords, email, and other sensitive information. Deleting selected files from the computer and even formatting the hard drive (s) does not prevent subsequent recovery and use of this information by unscrupulous individuals using commonly-available applications. 

Media sanitized by destruction cannot be reused, however software overwriting solutions do not harm physical storage devices so they can be reused. Degaussing causes the loss of timing tracks and renders a hard drive inoperable.   We can perform this for your home PC or business systems that you plan on donating.

 

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