Elementary knowledge of data recovery - Principle of data recovery

Data recovery is a process of finding and recovering data, in which there may be some risk, for no all situations can be anticipated or prearranged. It means maybe there will be some unexpected things happen. So you need reduce the danger in data recovery to the lowest:

• Backup all the data in your hard disk
• Prevent the equipment from being damaged again
• Don't write anything to the device on which you want to recover data
• Try to get detailed information on how the data lost and the losing process
• Backup the data recovered in time.