Imagine you are working on a presentation late at night and poof… suddenly the hard disk of your computer crashes. This results in the loss of a hard disk which may be replaced or repaired by the manufacturer depending upon when you bought it. However, what cannot be replaced are the documents, address book, maybe financial information and the presentation that you need to present to your boss in the morning. It may take you weeks to retrieve all this information.

There is no doubt that you need to protect your data from loss as it contains your important documents and files which were prepared with months and sometimes years of efforts. Data protection is of two types:

• Data backup and restore: In this option, we need to back up the data as per our schedule. Whenever needed, we can restore the data from the backup. The data which was created or modified after the backup was taken is lost when we restore the backup.
• Data recovery. In this option, there are data recovery utilities which can help you recover your data even if you have not previously backed up your data.