reasons for data loss and how to recover lost data

Along with the fast development of global information, computer data security are paid more and more attention. The availability, integrity and security of data storage is not purely related to technique, but also an important asset of enterprise and it is a reflection of enterprise viability and competitiveness. Thereby, the reason for data loss, data protection and data recovery become more and more important.

Many users may encounter this situation: after we clear up the recycle bin, it immediately occurs to us that there is something important has been deleted. What should we do? Actually, the deleted file is still in our disk but we can't find them in the operating system. At this time, we need to recover data. Although there are many companies engaged in data recovery, we can apply some professional software, MiniTool Power Data Recovery, for example, to restore data when files or partitions are deleted mistakenly. But data recovery is not almighty. It is difficult to recover data whose storage location is covered by other data or data loss caused by low-level format. Data recovery realized by applying software is called soft recovery.

Now we'll talk about the principle of soft recovery. When a file is deleted, data still exists in the same location. The operating system adds a deletion indicator on the corresponding file index in FAT to indicate that this file has been deleted and its cluster is in the idle state. We can not directly find the deleted data through the operating system. But it can be sought out by the professional data recovery software and restored.

Hard recovery is needed when data loss is caused by hardware failure. Data recovery software can not solve this kind of problems and we usually have to ask a specialist in data recovery for help. It needs to read code in FLASH chip and recombine FLASH data by using specific software and algorithm. The process is complicated and the relevant hardware equipment is expensive, so the cost hard recovery is much higher. If the hard disk is damaged seriously, its recovery probability may be 0.

Actually, we can backup data in advance. When files are deleted mistakenly, we can recover them through the backup. And MiniTool Partition Wizard is commonly used to manage partitions. And it can also backup disk data easily and conveniently.