How to fix a corrupted usb flash drive using CMD. ?

This method uses command prompt so use it wisely and carefully because wrong selection of drive may erase your hard drive data .

1. Open command prompt or press                   (win+R) and type CMD.

2. Then type  diskpart in command             prompt panel .(keep in mind diskpart. run as administrator).

3. In diskpart panel type  list disk.              

     (All the disk inserted into the system.         appears including hard drive.)

4.Type  select disk.                                       (Caution: select the disk carefully.)

5.Then type clean and press enter. 

6. Now type  create partition primary.           and press enter again.

7. Type active.

8. Type select partition 1.

9.Type format fs=fat32  and press enter.         You can write ntfs instead of fat32 if .         you want to store more than 4gb data.       on the drive .

The format process would take a few minutes and you have to wait till the  process ends successfully .

Caution : Do not close the command prompt until process ends.