A hard disk drive also known as hard drive or hard disk is a non-volatile storage device, which has the facility to stock up digitally encoded data on rapidly rotating platters and magnetic surfaces.
Its design consists of a spindle which can hold one or more flat circular disks known as platters, onto which the data is recorded. It has the ability to store data more than floppy disk drives and can also access and transmit data at faster pace. Today, the boost in disk space and access speeds of hard disk drive have further facilitated the marketable viability of clients products that need great storage capacities, like digital audio players and video recorders.
However, the main problem that we are coming across is erasing data or files from hard disk permanently. Most of us think that erasing files and emptying the Recycle Bin will help in permanently get rid of those files. In fact, in most of the cases Recycle Bin tells that emptying the Recycle Bin will permanently remove items. But this statement is totally incorrect. You have to understand even after emptying the Recycle Bin, the files can be easily recovered by data recovery programs. Making the best use of delete key on actually removes the shortcuts to the files and makes them undetectable to users. Deleted files still reside on the hard drive and a rapid Google search will automatically show options for system recovery software will further allow to restore that data.
Apart from erasing the files or data from hard drive, many people also consider that the effective way to erase hard drive data is by formatting the hard drive. Though formatting the hard drive is somewhat secure than just erasing the files, but you should also note that formatting a disk does erase only the address tables. It makes it much more difficult to recover the files. However a computer specialist would be able to recover most or all the data that was on the disk before the reformat.
Disk wiping is the next new technique that is gaining its popularity these days. Data Security Wizard from Easeus Software is an easy-to-use encryption and deletion tool, which is able to encrypt and completely erase your personal files quickly, easily and securely. General encryption software just adds limits and hide files, which are not essential meaning for encrypting data. The nonlicet user can access the encrypted files by some simple ways, such as "Modify Registry", "Data recovery software".To the contrary, the Data Security Wizard applies a new encryption algorithm assuring the nonlicet user cannot access your encrypted data by any way as long as the password is kept safely.
File/Folder wiped by general ways, such as deleting and formatting, can be recovered and your privacy is in danger. The Data Security Wizard erases the data by rewriting every byte on the disk. NO chance of recovery at all.
 

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