php editor Baicao sometimes encounters a problem when using U disk: when copying files, the U disk will prompt that it is write-protected. This question is confusing, because there is obviously no write protection set, so why does such a prompt appear? In this article, we will answer this question for you and provide some solutions so that you can copy files smoothly and solve this trouble.

1. Why is the U disk write-protected?

The write protection function of the U disk is similar to read-only, that is, the content can be modified but cannot be saved. This feature is designed to protect USB drives from viruses. When a USB flash drive has write protection issues, it is usually related to a virus infection. In addition, the reason why the U disk is write-protected may be due to physical faults such as bad sectors or damaged firmware in the U disk, or the write-protect switch of the U disk being accidentally triggered, or damage to the main control chip of the U disk.

2. How to remove the write protection on the USB disk

※Solution 1: Turn off the write protection switch

Look carefully to see if there is a write protection switch on the USB disk. If so, If so, try sliding the switch to the other side to turn it off.

※Solution 2: Check and kill with anti-virus software

You can install the latest anti-virus software on your computer, enter My Computer (This Computer), right-click your mouse and select your U disk letter , select scan for virus. At this time, someone may ask, will the USB disk anti-virus kill the files? Under normal circumstances, it will not be killed, but it is still recommended that you back up important data before killing the virus.

※Solution 3: Modify everyone management permissions

Right-click the U disk letter, select Properties, and click Security Options. Find Edit under Security Options and click it, then enable Full Control permissions for everyone, and finally click OK.

※Solution 4: U disk format conversion

U disk format is usually FAT32, convert it to NTFS format to see if it can solve the problem, win r and enter cmd or cmd .exe to open the command prompt interface, and then enter the convert file system modification command: convert L:/fs:ntfs/nosecurity/x (L represents the USB drive letter), and then press the Enter key.

※Solution 5: Modify the registry

Check whether the USB disk is set to read-only mode: right-click the USB disk->Properties and check whether the read-only option is Check, if it is checked, please uncheck it. If the check option is gray, otherwise cancel, it means that the registry information may have been modified. We can fix this problem in the registry and open the run through the win r shortcut key. window, then enter regedit and press Enter, expand the directory "HKEY_LOCAL_MACHINE" -> "SYSTEM" -> "CurrentControlSet" -> "Control" -> "StorageDevicePolicies" in the registry, find "WriteProtect", DWORD value on the right (If not, create a new one), if it is 1, change it to 0, and then restart the computer (be careful not to pull out the U disk when restarting the computer, restart with the U disk plugged in, wait until the system restarts until the U disk light flashes, and then Pull out the USB disk).

※Solution 6: Try to format the U disk

If the above methods are invalid, it is recommended to try to format the U disk. It is recommended to back up important data before formatting. You cannot perform any operations on the U disk. In this case, you can use data recovery software for backup. Quickly format the USB flash drive and see if it can solve the write protection problem of the USB flash drive.

※Solution 7: Mass production with USB disk

If the above method is invalid, after backing up the USB disk data, you can use the USB disk according to the USB disk brand and main control type. Download the corresponding mass production tools on your computer, follow the prompts to overwrite the USB flash drive, and restore the USB flash drive to factory settings.

3. Write-protected U disk data recovery

It should be noted that in the process of solving the write protection of U disk, there will be a certain risk of data loss in U disk, especially in U disk format. After normalization or mass production operations, we should develop the habit of backing up important data. If you accidentally lose important USB flash drive data during the process of solving the USB flash drive write protection, but there is no backup, stop operating the USB flash drive first and do not enter any new data to prevent data overwriting. You can use professional data recovery software - Cloud Knight Data Recovery Software for recovery.

The specific operation steps are as follows:

Connect the USB disk to the USB interface of the computer correctly, start the Cloud Knight data recovery software installed on the computer, and then various recovery options will be displayed on the left side of the interface. U disk data can be restored using "U disk/memory card recovery".

After selecting, the USB disk that has been successfully recognized will automatically be displayed on the right side. After checking it, click "Start Scan" on the lower right. If it is not successfully recognized by the software, you can troubleshoot Is it a problem with the USB disk or the computer interface?

During the software scanning process, do not perform any operations on the USB disk to avoid data overwriting affecting the scanning effect. Wait patiently for the software scanning to complete. After the scanning is completed, it will automatically be displayed on the right. Display scan result details.

In the face of numerous scan results, you don’t have to worry about spending a long time looking for data, because the software provides data types, data paths, and data modification times. , data file name, data size and other quick search methods.

After quick search, check the required data found, click "Recover Now" on the lower right, and save the data to a disk other than the USB disk. , click "OK" and wait for the recovery to be completed before you can view the data.

This article comes from yqssjhf.com>> Creation is not easy, please indicate the source when reprinting.

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