U disk tip unformatted three methods of repair and data recovery

Before making a boot disk, can be disconnected from the disc to reload the system, and recently to help others reload the system, through the U-disk start PE system when suddenly power off, causing the U disk temporarily paralyzed, through other machines, insert U disk open up "diskette I: not formatted"The hint that asked for the u disk Format, but the u disk stored a lot of important data swollen can be casually formatted, and then embark on exploring how to restore u disk data。 Tip: The disk is not formatted

Most of the time when the USB disk is being transmitted, suddenly unplug, activity power, or panic, will cause U disk error, can not open error, hint "disk X: not be formatted", if you also have such a request, do not worry too much, because in fact the problem is not difficult to solve, analysis, Often it is the boot sector that destroys the resulting error and DBR damage. The following is for sector damage recovery internal data, can also be the entire U disk recovery: solution One

Data recovery through a variety of data recovery software. Recommended index: ★★★

This is the most basic data rescue methods, whether it is hard disk or U disk error can not open or delete the data incorrectly, or through such software, to recover. Because the U disk is just a sector damage, the data inside is intact, so it can be detected and extracted from the software is OK.

In this recommended everyone use easyrecover, because it is free, but also support RAW format (after the error, we see U disk properties, will show me format), and the function is still relatively powerful, more useful, Dataexplore is also very good, visual view, feel more easy to operate and distinguish, If you have registered words recommended Dataexplore, if there is no or eat free easyrecover u disk File system counties Show as Raw

The following is opened with Dataexplore: Select the third item, select the U disk, and determine:

Restore u disk data with Dataexplore

After the scan, the data basically came out, we choose their own important information, the registered version of the selected files, right key to extract the file can be: Dataexplore scan u disk

If you use easyrecover words, the operation is as follows: Click Data Recovery, click on the advanced data, select your U disk, and then select the "File system type" in the advanced FAT32 FAT16 NTFS Everyone think about what is the original format of the hard disk or U disk, no more try one or two times, U DISK General FAT32 More ~ ~ Then click Next, after the scan will show the contents of the inside, because the data is in the inside, not destroyed, all the direct extraction can generally open, no problem, has deleted the file may be extracted after the open error ~ with Easyrecovery restore u disk data

After this operation, the basic needs of data are saved, you can format the U disk, and then directly to the extracted data copied back to U disk. Workaround Two

Ghost Mirror Backup, you can also try the Osghost software backup, its damage to the ability to identify the disk a little better ~:

Osghost Software for backup

(My u disk with Ghost method does not work, so later I tried to use UltraISO, the production into a hard disk image, the inside of the data are extracted into a file, but I loaded with virtual CD-ROM drive, open error, with WinImage Open is also an error, But after groping or found that the resulting IMA can also be used, after the repair, you can use UltraISO to write U disk, U disk and before the destruction of the same, of course, can also be opened with Winamage, and then can extract data) u disk tip unformatted Solution

(The U disk is made into a hard disk image, the resulting image file is IMA, you can winimage open this format file)

Workaround three

Modify the recovery boot sector data, solve the problem from the root of the problem, and restore the U disk. Recommended index: ★★★★ (This direct method is the best, more reliable, and can be restored to the state before the problem, the following for this root cause problem, I carry out four methods of trial, each method of success is not the same, but strongly recommend 3.3, 3.4 method, the success rate is very high. ）

The two previous methods are mainly through the backup of the U-disk data method, indirectly solve the problem, the following approach is mainly addressed to the source of the problem ~ because disk damage is the boot sector DBR,DBR in the No. 0 sector, so for the No. 0 sector to operate:

Download a Winhex software, tools-open Disk-Select the U disk-Select the boot sector, confirm the emergence of a variety of data, from 0000 to the location of the split line before the position, is the No. 0 sector of the contents of this operation. To the data 55AA position is the primary boot area scope

3.1 Recommended index: ★

This part of the data error, you can find an identical U disk, start the contents of this section from the first position, right-click the "Select Block Start"-to the 55AA end position, right-click "Select Block End", then right-edit-Copy the selection-standard, then open the damaged U disk with Winhex, Locate the boot area data for the damaged U disk, find 000000 digits, right-edit-cut version Data-write-confirm, so that the correct data is written, and then click Save, of course, your copy of the boot area information of the U disk is best not used to make other boot disk, otherwise may be the contents of the information does not match.

(my original operation was to put a memory card in the boot information, copy write to my Kingston U disk, save, the size of the U disk appears, free space is also out, open the file is also in, but open some files will be wrong, so to find a matching boot file, and then explore a better way. ）

(There is a saying on the web that each disk is formatted to generate a DBR and backup DBR, two are the same, and can be restored with backup DBR when DBR is compromised.) DBR in No. 0 sector, backup DBR in 6th sector, so we want to restore the 6th sector backup DBR to the 0 sector DBR, but I can not find the backup sector, you may wish to try it.

3.2 Recommended Index: ★★★

After I can't, I want to repair the boot zone through the software, through the Bootice Boot Sector Maintenance tool, through the Diskgenius, repair the boot area, maintenance: Through the Bootice Boot Sector Maintenance tool

Feel this tool more useful to see the U disk Boot zone damage, may be the main boot record gray, repair not, you may wish to try. Diskgenius, you can modify the partition table, repair the boot area, and so on

3.3 Recommended Index: ★★★★

by Winhex clone u disk, generate IMG file, then format u disk, then winhex import formatted u disk, copy boot area information, open img, fix boot area, clone to U disk, so that before the problem is identical. Click the clone u disk through Winhex clone u disk

With Winhex clones, click on the picture display and then make sure that an IMG file will be generated. After the build, you can format the U disk, the formatted boot area information is correct, so copy the boot area as described above, then open the img file that you just generated, click on the Professional tool-turn the mirrored file into a disk, click on the start sector, and select and write (paste) the correct boot information. Then click Save, Go here, click on the clone disk, but this source chooses to modify the good img file, the target chooses U disk, then confirm. After that, the U-disk data is exactly the same as it was. (can also be repaired, through the virtual optical drive, other software open the IMG file, and then extract the data inside.) ）

3.4 Recommended Index: ★★★★

In the same way, we can modify the previous IMA (the hard disk image made with UltraISO, as mentioned previously), In accordance with the 3.2 method, the DBR repair, save, IMA can be opened through the winimage, of course, the better way is through the UltraISO open the IMA file, click the tool-write hard data, select U disk, click Write, as shown: Open the IMA file through UltraISO

This method is the same as Winhex import (because Winhex does not support the IMA format), after writing to the U disk, the U disk data is identical to the original.