Data recovery is the phenomena of recovering and restoring information or data from a storage device commonly called Hard Disk Drive. Hard Drive is a magnetic disk on which we can store our data .When the data is physically overwritten on a hard disk it is generally assumed that the previous data is no longer possible to recover. In other words data recovery is the process of retrieving computer data which has been deleted or missing by some accidental ways.Data gets damaged or missing in a variety of ways from virus attacks which results in a loss of most important data on your hard drives. These viruses have an inborn capacity to duplicate and destroy data and files. Data is a very important resource that is the life-line of modern age. All informative data information resides on a variety of storage devices such as hard disks and tape drives.When we loss data it becomes very difficult for a computer user who is all dependent of computer for his daily work. In most times we fail to take precautions or backup to our computers which ultimately results in the loss of our data at a large extend.Two types of data loss is possible one is physical damage and other is logical damage. The physically damaged includes CD-ROMs, head crashes, electric failure, and tapes. This type of damage relies on physical phenomena or physical impact. And the logical damage includes File system which is most common possible damage and which cannot be repaired by end user.

Logical errors are often occurred when the disk accidentally fails while writing important information to the disk. The logical errors are the important or difficult errors to deal with when data is recovered. Logical errors occurred when files become corrupted or inaccessible, there is a delay in starting up the computer, and all programs do not run in proper manner.Now a day we are able to recover our data without any panic, thanks to data recovery software. If you've accidentally deleted or had your important files inaccessible, damaged or lost due to mistake, business espionage, faulty hardware or software or any other reason; the good news is that your lost data is probably recoverable. The data recovery software efficiently restores and recovers your missing or deleted data with out any damage to your data. There are some companies which provide you with customer services. you can call or talk with them about the loss of your data they will provide you comfortable data recovery software When you find one that you feel comfortable with, give them a chance to serve you. The new improved technology for data recovery has increased the value for such software's.