The most common scenarios in you come across data loss:
Damage due to power fluctuations: These power surges can create troubles for you by imposing damage to your storage like hard disk drives which contains significant data. There are different types of power surges and degree of damage depends on the type of problem. They are:
Sag (low voltage problem): In this case the computer may not receive sufficient amount of power and due to this data may be lost, due to unfinished write operation or unfinished file updation process.
Black-out: In this case of total black-out, data in RAM is lost permanently. It may also impinge on data in FAT which makes hard disk data unattainable.
Spike (High voltage problem): Sudden increase in the voltage is called as voltage spike which can cause damage the data stored in the file system of the hard disk and data loss. According to a standard survey, data losses are high due to power fluctuation and in every instance you may be require to spend cash on NTFS recovery software.
Physical damage: At times data may become inaccessible due to physical damage to the hard drives or their components etc. Repairing or replacing hard disk parts that are malfunctioning may make the data stored on the disk accessible.
Recover crashed hard drive: Disk Data Recovery Software is used to recover lost data due to accidental deletion of files or formatting of hard disks or partitions of hard disk and to recover data from the crashed hard disks.