How to remove U disk write protection?

Online a large number of U disk write protection solution, the basic symptoms are not the root causes, the following is for everyone to clean up the U disk write protection repair method, I hope to help you!

The first method:

Download u disk virus Kill tool Usbcleaner

Select usbcleaner--> Monitor program--> other functions

There is a--> option to remove write protection, and then select the Browse letter and click Remove write protection

Finally OK, try to see if there is any lifting.

The second method:

One, My computer (right click)-Management-Disk Management-Select U disk right click to delete the formatting

Second, modify the registry (because the registry is the last thing I do, I do not know the "other methods" in the two steps to its role, please do the registry to modify the method is invalid before the conversion format and modify the operation of the policy)

1, open the registry Win+r (that is, start-run) type Regedit.exe

2, enter the following directory Hkey_local_machinesystemcurrentcontrolsetcontrolstoragedevicepolicies

If there is no storagedevicepolicies item, this item is established

3, establish a DWORD value named Writeprotect and make its value is 0

4, restart

The above is the general operation, but in the actual operation, such as the operation will sometimes not solve the problem of write protection, for this problem I have the following operation

5, reboot with a U disk reboot, when the system reset to u disk light flash, unplug u disk

6, the system reboot after the insert U disk, u disk operation back to normal

Supplementary note: The Hkey_local_machinesystemcontrolset002controlstoragedevicepolicies in the registration form; The Writeprotect value in Hkey_local_machinesystemcontrolset001controlstoragedevicepolicies was also changed to 0;

If the above two methods still do not solve the problem, look at the following third method:

The third method:

FAT32 Turn NTFS

General colleagues of the U disk are FAT32 format, now let us convert it to the NTFS format:

If your USB drive in the computer is the L: Disk for example

1, Win+r input cmd.exe (is to start dos,windows inside) can also be attached to the command prompt;

2, the use of the Convert command, note that the convert command can not be converted to the current disk so in L: any letter outside the operation, where the D: Disk directory for example;

3, enter the following command convert L:/fs:ntfs/nosecurity/x

Disclaimer: In addition to modifying the registry method can only be a second solution to the U disk write protection, please choose carefully, it is best not to convert the format operation, if the format conversion, FAT32 to the NTFS data will not be lost, to the U disk restore normal after the format to FAT32, FAT32 to NTFS conversion simple, But the reverse is troublesome, and the data is easily lost after the turn.

If it's not solved, the ultimate solution is mass production.

The Ultimate method:

Mass Production Repair

First, download u Disk chip Detection Tool "chip worry-free", get the problem of USB disk chip information, such as the following graph group;

Second, search the chip's low grid tools or mass production tools, and download, such as the above detected is a group of ps2251-61 chip, on the direct go to the volume production network group of mass Production tool column download the latest MPALL3.29 production tools;

Three, according to U disk mass Production network of group of mass production of the program volume production repair u disk on the final solution to write protection issues, although the volume of production risk may be scrapped, but this is indeed the most effective way now.

Note: The confirmation is not write protection switch of u disk, a switch directly open write protection, do not need to repair.