The recoverability of the data

The recoverability of the data

DiskGetor data recovery is powerful Hard drive Data Recovery Software help you solve the data security problems. It can recover deleted, lost, damaged and formatted data from hard drive or partition. Even if you have written new data into that hard drive or partition, DiskGetor Data Recovery still find its directory tree from hard drive.

Some people feel that this topic is rather peculiar to say, but data recovery, as a data reproduction process, we must solve two problems, the first recovery where the second problem is how to recover. To solve these two problems, we actually grasp the ideological context data recovery. And this part of the problem is to resume from where.
① effective and timely backup, data recovery the most reliable sources, many people advocate backup to the second today, I'm afraid no one will doubt that. Some backup mechanism is built into the system, such as two FAT table.
② actual data validity is critical for us, the hard disk can not bootstrap file could not be found, the file does not open phenomenon, in fact, does not equate with the loss of data. Because often the data is only from the point of view of the operating system is a kind of logic is lost from the physical sector sense, it still exists or part exists. The most obvious example is the file deletion, in fact, this is only the first byte of the file instead of 0E. File body still exists.
③, the reversibility of the data corruption process analysis: no more than two changes to the data, substituted and transform, the former is not reversible, and the latter is reversible. Antivirus for example, For mostly file viral, the additional rather than substitution infection file virus, the ideal antivirus process is infected inverse process. This analysis also common and important information is hidden move or be encrypted, but the analysis is more complicated.
④, the data itself is standard information: Some information is actually universal or local general, you do not need to consider how to rescue from the machine. The same or similar system version, such as BOOT area, hidden sector, WINDOWS DLL files. Typical example code area, such as the partition table, which is a period of a standard code, in fact, it is the inside, on the FDISK program you can use DEBUG extracted.
⑤, the data itself is whether it can be regenerated by other statistical information: Some information is lost, and there is no backup. But it actually can be indirectly obtained from other data. The most typical is the primary partition table partition information, even if he cleared do not have to be afraid, because you can be calculated from the partition you a few regeneration.
⑥, the completion of the destruction: in fact, FDISK, FORMAT will not completely destroy data, generally only low grid and sector data covering the operation will be completely destroyed. But sometimes, the destruction process or misuse of the process due to the artificial termination of crashes and other reasons can not be completed. The most obvious example of the CIH virus, CIH in 1024 bytes, covering sectors, which of course is an irreversible process, so we initially think that the damage is difficult to recover, unless manually terminated. In fact, with the 9X system When viruses coverage of certain sectors in conflict, resulting in the crash, so that the data is protected.

PS : If the above does not work , do not do irreversible operation should find a professional data recovery personnel or data recovery company to help otherwise cause data unrecoverable loss .

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The recoverability of the data

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