Some causes can lead to data loss: sabotage, natural disaster, hardware error, software corruption, virus attack, human error, intentional deletion, accidental overwriting of files, software related reasons. Some virus, format, bad partition, bad clone, error. -Operation, network removal, power outage during operation may all be software reasons. Symptoms are usually malfunction, reading error, unable to find or open file, not reporting any partition, unformatted, lost password and struggling characters using software tools to get it back. So-called soft recovery means that data can be recovered using software. Hardware related reasons Sometimes data loss is due to hardware like bad sector in hard drive, power outage, head damage, circuit panel problem, etc. Among these hardware issues, hardware speed becomes slow and cannot work properly; unable to read data, etc. Some statistics on the cause responsible for the percentage of data loss: Tips to avoid data loss