File or directory corruption and unreadable resolution

　　The method is simple, with the Chsdsk command

　Detailed details are as follows:

Start--run--input cmd--Enter the Chkdsk letter:/F

Wait for the command to run out.

Notice here that the colon should be empty after that, and don't follow it and write "F".

Could not open h disk, file or directory corrupted and unreadable

　　Failure phenomenon

Whether it's a removable hard drive or a USB drive, including a hard disk partition on your local computer, double-click Open, prompting: "Unable to open h disk, corrupted file or directory, unreadable, ...". Some of the partition formats become raw.

　　Data loss Reason Analysis

This error is prompted by a disk file directory (FAT,MFT) error caused by a variety of reasons. Mainly occurs in USB drive, MP3, mobile hard disk and other mobile devices, including large (160G or above) NTFS partition format of external mobile hard disk has the highest probability. There are many reasons for this, usually for the following reasons:

1, no normal plug-and-pull mobile devices, the system does not complete the full read and write operations, resulting in confusion and incomplete file directory information. For example, we copy a file to the mobile device, shutdown restart, select, again open to use or to other computers when the symptoms.

2, the selection of inferior products, including inferior power supply, motherboard, data cable, especially inferior external hard disk box. Product power supply, the main control circuit instability, resulting in disk addressing error, write information disorder.

3, the use of PQ, PM and other disk partition adjustment tools.

4, the virus, hard disk hardware itself failure, the work of the sudden blackout.

　　Quality of recovery effect

If you are a large mobile hard disk and are in NTFS partitioned format, the recovery quality is ideal, and basically all the files and directory structures can be recovered successfully.

In the case of fat or FAT32 format, the restore quality effect is slightly worse than the NTFS-formatted partition, depending on the degree of damage, so it is recommended that you use the NTFS format partition for daily use, with the number

It is more secure.

　　Data Recovery Preparation

I don't know who started it, someone on the internet told you to format the partition first, then use some data recovery software to restore the data, you should not do so, format, especially the FAT format partition, the restored data its directory structure is incomplete, especially the most frequently edited files, because more file fragments, Recovery software lost the comparison of fat table, the recovered files are mostly not open.

The following operation recommended to do first mirror backup!

If you want to take a shortcut, you can first touch the luck, you can first CHKDSK try. Chkdsk,windows the operating system's own disk check Repair command.

Take a look at the letter of your faulty device, then click-Start-run, and enter CHKDSK h:/f carriage return in the Run dialog box. Note that H is the letter you want to check for repairs. The system then starts checking the disk partitions. Windows automatically fixes an error partition if the system is able to detect problems and within the scope of the repair capability. If there is no reflection, do not unplug the device, restart the computer to try.

　　Chkdsk parameter description:

CHKDSK [Volume[[path]filename]]] [/F] [v] [/x] [/C] [/l[:size]]

volume Specifies the drive (followed by a colon), mount point, or volume name.

FileName? For Fat/fat32 only: Specifies whether to check for fragmented files

/F Repairs errors on the disk.

/V on Fat/fat32: Displays the full path and name of each file on the disk.

On NTFS: If there is a purge message, display it.

/R looks for incorrect sectors and restores readable information (implied/F).

/l:size for NTFS only:? Changes the log file size to the specified number of kilobytes. If no size is specified, the current size is displayed.

/x If necessary, force the volume to be unloaded first. All open handles to the volume are invalid (implied/F)

/I is used only for NTFS: a less intensive check of index entries.

/C for NTFS only: Skips the looping check of the folder structure.

The/I and/C command line switches Skip some checks of the volume, reducing the time required to run Chkdsk.