Can restore the data after the false ghost

Source: Internet
Author: User
Tags file system virtual environment

A user's consulting phone collation:

User

My hard disk Ghost the system, the number of partitions and partition size is different from the original, the original file system is NTFS, has 5 partitions, now become 4 FAT32 partition.

Can this situation recover data? How high is the success rate?

[Tommy]

Does the hard drive become formatted after it ghost and becomes 4 partitions? Have you written any data?

User

Did not write the data in, do not know whether the format, can open 4 partitions, but the inside of the empty.

[Tommy]

It was partitioned and then formatted.

User

Can the data still be recovered? In addition, before Ghost, I did the wrong operation, the C-disk data all ghost to D disk, this also affect? In fact, originally I want to do a backup of C disk, the result is not very familiar, after the end, found D and C disk exactly the same, so I want to recover, After ghost done, the discovery became 4 partitions, the original e,f,g also did not. At that time, I never dared to move any more.

[Tommy]

If that's the case, the D-disk data will usually be a bit cumbersome, other partitions of the data should not be a problem, there is a chance to recover, of course, the specific situation is needed to do analysis, the simplest principle is that if the data is not covered, there will be a chance to recover, if the data is overwritten, the data is hopeless. In your case, the first step is to ghost C to D, which does not affect data from other partitions. But after the second step, because there is a new partition structure produced, and then formatted, the operating system will write some data for each partition, formatting is also a process of writing data, there may be some damage. If it is FAT32, each partition will write approximately more than 10 m or dozens of m of data. As for the reliability of recovery, to see where the data is written, if it happens to be in the free space of the original hard disk, there will be no impact; if it's right in the data area, it might affect the file that was originally stored in the data area, which is the effect of a few m or dozens of M, and if it's right in the file system area, you need to The situation will be more, it is poor situation, may affect a large number of data, not just a few m or dozens of M, this because of the many factors involved, not to talk about, just a point: the concept of covering the core area of the filesystem is very low, usually do not have to worry too much.

The problem with the D-disk is also complex, usually the coverage that has been generated, and the probability of recovery cannot be judged before the analysis. Usually one of the most common and not necessarily correct ways to understand the probability is that if you have 10 g of data, and now you have 3 G, it's possible to recover 10-3=7g data. But such an algorithm is very unscientific, only to explain the general principles of data recovery.

User

That such data recovery, if do not succeed, will not cause damage to the hard disk, in a data recovery company after recovery, if do not, will affect the next recovery?

[Tommy]

The normal practice is not to have any damage to the hard disk, our approach is to do not load the hard disk letter in the way to read operations, through the virtual way for analysis and restore. Even if the data has been recovered, it is only in the virtual environment before the confirmation, and will not have any irreversible operation on the original structure. If you cannot recover, or the user is certain that you do not need to recover. The hard drive was exactly the same as before we recovered.

Of course, we also have the premise that the recovery process is also likely to have a human unavoidable disaster, such as the hard disk suddenly not man-made damage, but this possibility is extremely low. Our recovery is done entirely under the supervision of the customer.

User

What is the time of recovery, the price and the method of payment?

[Tommy]

If you do not restore D, only other partitions are restored, which is within 30 minutes. Recovery of successful fees, recovery is unsuccessful, the hard disk as is, do not charge any fees, including possible door-to-door fees. Price See North Asia Data Recovery Center Unified quote.

This article is from the "Tommy (Data Recovery)" blog, please be sure to keep this source http://zhangyu.blog.51cto.com/197148/144982

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