What should I do if the USB flash drive is suddenly write protected?

There are two types of write protection, one is hardware, which is often referred to as the write protection switch, and the other is software write protection, which protects the files in the USB flash drive through management tools. Deletion method:

1.In DOS, go to the directory where the hidden file is located and use dir a to find out the name of the hidden file under DOS (don't forget the suffix), and then use the attrib command to remove the relevant attributes of the file, the usage of attrib: show or change the file attributes.

attrib+rr]

aa+ss]

hh]drive:]

path]filename]

s d]] Set the properties. Clear the attributes.

r read-only file attributes.

aArchive file attributes.

s system file attributes.

hHide file attributes.

s processes matching files in the current folder and its subfolders.

d also handles folders.

2.After entering the safe mode, the folder is given full permissions, and the folder can be deleted after restarting.

There is no important information!

If not, format.

It is estimated that it is infected with a virus or damaged, otherwise try this method.

Win+R, enter the drive letter of your current USB flash drive. For example: "Removable disk d".

In the pop-up run box, type d:

See if you can get in, if you can get in, it's poisoned, or some files are blocked.

One-click to remove the write protection of the U disk, how to remove the write protection of the U disk, a look will be!

It may be broken. There are 3 possible causes:

The first type: a USB flash drive with good quality.

There is a write-protected switch by itself. Make sure that the write-protect switch is turned on. In this case, it is usually less common than Dou Ruchai, because you have set it yourself, you can also find the switch on the U disk, turn off the write protection switch, and there are few such switches on ordinary U disks.

If you encounter this situation, you may wish to use the taskbar on the USB flash drive.

Right-click on the USB flash drive icon to see if there is an entry set in the properties.

Scenario 2: The USB flash drive logic error is caused by an unknown reason, causing the system to identify the wrong file access address or lack the operation permission. The caused USB flash drive data error cannot be changed twice, or the user authority is insufficient.

The third type: the flash storage empty chip of the U disk.

It's broken. To remove the write protection of the USB flash drive, you can change the read and write permissions of the USB flash drive on the computer.

1. The U disk oak is reading and writing data, saving data, and the indicator light is flashing. Read and write data is user-changeable, read-only memory.

ROM), which can be erased and reprogrammed by acting at a higher voltage than normal.

When we use a USB flash drive to store files, we may encounter a prompt that the USB flash drive is write-protected and cannot transfer files, but we don't know why the USB flash drive is suddenly write-protected, which may be caused by the following reasons.

U disk was suddenly protected by the spine write:

First, it comes with a switch.

1. Some USB flash drives will have their own write protection switches.

2. When our USB flash drive encounters the built-in switch trigger condition, it will automatically turn on.

3. At this time, there will be the problem that the U disk is suddenly written and protected.

2. Mechanical failure.

1. If the USB flash drive encounters a mechanical failure, it will cause it to be suddenly written protection.

2. Write protection may be triggered if the U disk has bad sectors, the U disk firmware is damaged, etc.

3. Internal Procedures.

1. If the internal program is corrupted, such as the storage format is broken, it will also lead to write protection.

2. Outside the ridge of this trap, accidentally the USB flash drive is infected with a virus and will write protection to protect your data.

Here's how to solve the problem of envy:Operating Equipment: Dell laptops.

Operating system: win10

Operate to make which empty program: U disk disk.

1. First find the USB flash drive disk and click Format.

2. Change FAT32 to NTFS, and click Start.

3. In the pop-up dialog box, click OK.

4. Click OK.

5. At this time, you can copy files above 4GB.