Monday, December 21, 2009

External hard disk formatted to recover data can do!

External hard disk formatted to recover data can do!

As long as no write operations may resume.
Key document data recovery company may need help. Some software can also hire their own self-healing, but must not write any data back to the hard disk.


EasyRecovery can also be used for data recovery work, the assumption that high-level formatting (that is, normal formatting operations, as opposed to a low-level formatting), the best is not as little as possible to write data inside hard disk before it can the greatest degree of recover data.

Formatting principles

Note that the formatting that I have mentioned here is that we often use the actual operation to the high-level formatting, such as when you reinstall the system, addressed to a partition formatted, such as the D drive, the files stored on the original and so on did not do, except that (hard drive) address of the original pointer to point to these elements have been broken, so in fact the content is still there, but you can not see nothing, but once you write the new additional content, you The original data is overwritten, thus cease to exist. Delete a file is the same one principle (and in the recycle bin completely removed), so the content can still be used to restore the software right away format, the content has been restored, but only if the disk partition can not be in this upload other things, quick format is also can be resumed (just a simple removal FAT table (File Allocation Table), clear content).
High grid that is referred to the general format, clear the contents of the disk, initializing FAT tables, generating guide information (I have come across such a case, U disk is infected, a plug into the computer, it immediately anti-virus software to kill, then that is unable to open U disk, this time as long as the format a bit but do not select quick format, because there is above, you can use. I thought for a moment, and perhaps this is the format to re-write the information to guide the performance of the original U disk boot information has been infected with the virus as well as with the killing, due to less guidance information, it is impossible to open), and the table note bad sectors, so we know that the grid does not fix the high bar (logic) bad Road, can only mark out the (logical bad sectors), while the low-grid, said the simple point is on the disk with the head of the disk divided into tracks, divided into cylinders and sectors, re-partition, which is to undermine the hard disk, so we the user is not recommended to do, only in the hard disk the virus destroyed by magnetic fields outside the fallout of losing stored magnetic sector, resulting in a large number of the logical bad sectors when the disk unrecognizable to shield those with low lattice logic bad sectors, but now To repair logical bad sectors as long as the related software can be used, or with the re-zoning Canadian shield bad sectors like, and why to use a low grid and in return it is to reduce the cost of life the hard disk does Moreover, you are shielding the bad sectors that they were not hidden in it will be as hard to expand the use and format, and will only make the logical bad sectors more and more, they should be repaired. Also, if the physical bad sectors by the violent collisions, ah, ah magnetic surface disorder and other physical planning of injury, then no matter what format you are powerless, and only early as possible taking advantage of not scrapped quickly copy files, or holding scrap hard disk to specialized companies to recover data.


External hard disk is formatted (non-fast) speed very slow

Fast grid quickly ticked off the hook soon after the grid is very slow, is why?
10 minutes of only three percent (3%). Hard disk is 30G's.

Quick Grid is a large grid paper and a small piece of paper even if this rotten painting is still in there after the words written in the past this piece of rotten on a small piece of paper can not you read the
Slow Grid is a serious piece of paper to see if a position paper rotten do not where the sign so as not to write important documents, which go to

1.5T formatting the hard disk has not yet completed

Today, just start with Seagate 1.5T hard drive, intended to hang in the system to do under the exclusive high-definition disc and found 1.5T drives a district with only minutes to complete the case can not be formatted (quick), I do not know what reason?
Added: now the normal format, it is estimated to be 2-3 hours to complete, do not know can really be completed, I have the system Vista, system has been identified and the size of the hard disk.

Format first time can be a quick format. After that you can quickly formatted. Could it be that the operating system does not support it, although recognized as the 1500G hard drive, but only the first of which operate 1000G. (However, in theory, to support 136000TB heard the hard drive).

two Hard drive formatting problem

2 hard drives, another hard disk formatting is now needed before we can use, but there are important things which can not be formatted, what approach is not formatted to save data inside the hard disk on my computer can not find, in the management and BIOS Inside there, use the hard disk partitioning software shown above is not formatted the hard disk needs formatting.

Suppose that the data not the data for A for B, not A first disk, the B partition, format, install a good system, and then confirm the system to normal, hang pairs of hard drives, set the startup disk B, into the new system can be convenient to put data down to the B drive, and then handle the A plate, the same way as the data down on OK

Formatting the hard disk (not low-grid) will affect the hard life?

Common format the hard drive will not affect the life of the hard disk. Format is divided into high-level formatting and low-level formatting. Advanced grid ..Formatting the hard disk (not low-grid) will affect the hard life? Format the hard disk with Windows on a floppy disk formatted with the principles of the same? Answer 1: General formatting the hard disk will not affect the life of the hard disk. 

Format is divided into high-level formatting and low-level formatting. High-level format just clear the hard disk data, generating guide information, initialize FAT table, mark the logical bad sectors and so on. The low-level formatting the hard disk is divided into a cylinder and track, and then track divided into several sectors, each sector has carved out some identity ID, spacers, GAP, and data area DATA and so on. High-level formatting low-level formatting is the work of the previous one, each disk in the factory before they had low-level formatting. 

Low-level formatting is a loss of operations, the hard life of a certain negative impact. We usually used by Windows, formatted (including the use of DOS format below) is high-level formatting. In Windows, the formatting of the hard disk and floppy disk formatted principle is the same. The floppy disk format is different, we carried out a comprehensive format a floppy disk is a low-level formatting. Answer 2: For the past few years bought a new hard drive, including high and low grid, including cell formatting operation will not affect their life. 

Compared with the previous, and now the hard disk's physical structure has undergone some changes directly affect the realization of the corresponding changes in the way the hard disk commands, the most important thing is to seek changes in the way the hard disk led to changes in the formatting instructions. Currently users can access is through the transformation of the logical sector, rather than the actual physical head corresponding to the physical sector. In this way, the user can not actually drive the physical sense to operate the. 

Now the so-called low-level formatting is only achieved a re-set to zero and will redirect the bad sector fills and can not be achieved the hard disk regeneration, there is no physical sense of the repair. For the commonly used high-level formatting, "Quick Format" is just to reset the hard disk partition table, even the "full format", is nothing but reset the hard disk partition table in addition to all sectors to re-set to zero. It can be seen, the user is running with the other common formatting commands to read and write operation is not fundamentally different, and in the entire life of the hard disk, this number of read and write can only be measured with an astronomical figure, and formatting, or Ghost in the number of operations can be ignored. Under the existing hard disk manufacturing technology, general applications, simply because the hard disk damage caused by reading and writing is very rare, most drive failures are related to external physical impact, read and write in a sudden power failure, as well as damage to the circuit. 

Therefore, the only format to be considered is to avoid the occurrence of these types of situations. Was the same as the floppy disk drive, using stepper motors to control the head position to seek operation. As mentioned in front, now, with the level of head positioning precision constant improvement of methods and formatting the hard drive seek instruction, great changes have taken place. However, in normal circumstances, the actual applications, we can consider the two principles are the same.