Always prompts me to copy the file for floppy disk is write protected and cannot be written to disk, please roll the write protection is removed from the DeviceHarddisk1DR21 drive, there is no U disc I on any button like, save up to three or four files which began, trouble is dead
If you have a small, one click button, put the button in the opposite direction.If not, change the computer to try, if other computers can, then download a "U disk treasure box" to repair your system. There are also a lot of personalized procedures
To your U disk manufacturer's official website, go to the relevant repair tools to solve.
First, when the computer can correctly identify the U disk, we can do a try to repair the U disk. Right click the U disk drive, select properties from the pop-up menu".1, and then in the open properties window, switch to the Tools tab, and click Check Start check button.2, in the pop-up window, check two items, and click the start button to try to fix the U disk write protection error.3, if it is not the U disk itself to write protection switches and other problems, or change the computer test is not possible (excluding the computer itself), the following describes the use of software to solve:First method:Download the "USBoot" program. Because the program performs the U disk repair operation, there is a certain risk, because if possible, do a good job of U disk backup of relevant data.Run the USBOOT program, select the U disk that you want to fix, and then click Select work mode drop-down list, and choose "reset the parameter with 0". Then click the start button to perform the reset operation on the U disk.Second methods:First, my computer (right click) - Management - disk management - select the U disk, right-click delete format (online method, I did not test, I hope useful)Two, modify the registry (because of modifying the registry is a job, and in the end I do not know "other methods" in the two step on a cushion effect, please do the registry to modify the method after the invalid format and then convert to modify the strategy operation)1, open the registry win+r (ie start - run), type regedit.exe.2, enter the following HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies.If there is no StorageDevicePolicies entry, this item is created.3, establish the Dword value, named WriteProtect, and make it 0.4, restartThe above is the routine operation, but in actual operation, the above operations can not solve the problem of write protection, aiming at this problem, the author has carried out the following operations.
