U disk common fault maintenance methods, U disk common problems how to solve

The message "File or directory is corrupt and unreadable
When you insert the USB flash drive into the computer and see the "file or directory damage can not be read" prompt, it means that the USB flash drive may appear in two situations: one is physical damage, can only be repaired, one is a logical error, you can try to use the following method to repair.
Enter "My Computer", right-click the USB drive letter, select "Properties", select "Tools" in the pop-up properties panel, click "Start check", "start", check and repair the USB drive.
The USB flash drive is not displayed in the computer
Sometimes after inserting a USB flash drive, the computer does not recognize the USB flash drive, but the USB port is no problem, in this case, follow the following steps to solve it. The method/steps are as follows:
1, right click on the "Computer" icon, then click on "Management"
2. In the "Computer Management Window", click the triangle to the left of "Storage" and click "Disk Management" in the drop-down list that appears.
3. Right-click on the USB drive letter that cannot be displayed, and choose "Change drive and road strength" from the menu.
4. Click "Change" in the dialog box, select a new drive letter that is not used, and click "OK".
How to restore the file deleted after U disk antivirus
U disk in each computer data copy, in this process, if a computer with a virus, it may lead to U disk virus infection, in order to protect the safety of other computers, after finding U disk poisoning, it is recommended to no longer use the U disk, if you still want to use the U disk, you need to use anti-virus software for U disk processing. After using anti-virus software to remove viruses from the USB flash drive, if you find that the data has been deleted by mistake, you can use third-party software like strong recovery software to restore it
When restoring data, do not restore the name "autorun.inf"
This is mainly because "autorun.in "may be the virus Trojan software in the root directory of the U disk established, they use this file as a medium to steal user information, steal user information.
Four, U disk password protection how to cancel it
Usb flash drives are often used to save or move important data, and in order to better protect the security of these data, we can also add password protection to the USB flash drives. However, when the U disk has not saved these files, it is recommended to cancel the password protection, after all, every time you need to enter a password to view the file, it is very inconvenient. Then how to remove the guest code protection, the specific steps are as follows:
1. Insert the U disk into the computer, then enter the control panel of the computer, find the itlocker drive encryption ", if you can not find it, change the viewing method to "big icon" in the upper right corner.
2, click "bitlocker drive encryption", after entering the new window, click "Close bitlocker" after the USB drive letter
3. Select "Decrypt Drive" in the pop-up dialog box and wait for the disassembly to complete
Note: Do not perform other operations on the USB flash drive during decryption. After decryption, click close directly.
Five, the use of U disk need to format
1, U disk attributes display "O bytes", can not be formatted
In the format of the U disk, there is a "file system is raw" prompt, then right-click on the U disk drive letter, click properties, we can see that the display here is" 0 bytes ", this time there is how to deal with.
The solution:
1, turn off the computer, insert the U disk, and then turn on the computer. After the startup is complete, right-click Computer and choose Manage from the menu to enter the Computer Management window
2, find the "disk management" on the left side of the window, and then find "touch disk 1(removable)" on the right side, right click it, click "New partition", click "FAT32" "NTFS" ", when the system prompts that the partition is created successfully, you can start formatting the U disk
2, can identify the USB flash drive, but open the prompt "Format" when using the USB flash drive, when the computer prompts "format", the reason may be that the USB flash drive in the process of abnormal insertion if you want to repair, you need to use the "chkdsk command", the specific steps are as follows: click "start" run ", enter "CMD" in the dialog box, Press Enter, enter chkdsk drive letter :/ in the window, for example, chkdsk h:/f, and wait until the command is finished.
Six, can not copy the U disk files how to deal with
If you can not copy the files on the USB disk, the role of the USB disk will be greatly reduced, in order to solve this problem, you need to follow the following steps
1. After the USB flash drive is inserted into the computer, right-click the USB flash drive letter and click "Properties".
2, after entering the properties window, click "Tools", then click "Start check", after the check is completed, click "repair"
3, after the repair, click "Share", select "advanced sharing", select "Share this folder", click OK to save.
Seven, the file on the USB disk is hidden if you are sure that there are files on the USB disk, but you can not see this file on the computer, you can think that this is because of the USB disk poisoning, these files have been modified by the virus file attributes, are hidden, so we through the command "attrib" to modify the file back, The specific method is as follows: Click "Start" and "Run", enter "CMD", and press enter to enter the management window. In the window, enter the atrib drive letter: "-s-h-r /s d, for example, attrib" -s-h-r /s /d, press enter, and wait for the fate to end.
The main meaning of this whole paragraph of characters is to remove the system, hidden and read-only properties of all files and folders under the disk, so that the files that are hidden because of the USB flash drive poisoning can be seen.