Why does the USB flash drive file system change to RAW format, and what is the principle?

U disk into RAW is mainly the partition information and original data loss, when the U disk becomes RAW you want to format and format can't be, to solve this problem is to mass produce the original U disk.

With a checkerbox, it should be solved.

It depends on whether your situation has been mass-produced, and then use tools to make it back.

Some people say that there are multiple hard disks or too many partitions, which are caused by moisture and heat, but the specific reason is not to say that they are cleared.

Solution 1: Problem 1 of system permissions (the original system is in NTFS format).

Right-click on the RAW drive letter, select "Properties", then select "Security", delete the useless user, add your own username, and change the permissions. If there is no security option, you can right-click on the NTFS format disk and display the security option in the properties menu in the folder options (open "My Computer" - select the "Tools" menu - and then select the "Folder" option).

Solution 2: Problem 2 of system permissions (the original system is in NTFS format).

Go to the "Control Panel" and find "Management Tools", open it, turn on the "Local Security Policy", open the "Security Options", find "Network Access: Sharing and Security Mode for Local Accounts" in the right window, and then change "Guest Only" to "Classic", exit back to My Computer, right-click on the disk that has become raw to find the "Security" tab, delete the garbled characters, and then add the user of this computer.

Solution 3: How to modify the drive letter.

Change the drive letter of RAW, if it is C, D, E, F, F is the RAW drive letter, change F to E, and you can restore it.

Solution 4: Make use of EasyRecovery software.

To use EasyRecovery software, click on the second button "Data Recovery" on the left side of the software. Then click on the first "advanced recovery" in the right border, and then you will see that the left side of the software lists all the disks of your computer, select the disk that cannot be used, and then click "next" all the way, the computer will analyze the data existing in your disk, and then find out the files on the hard disk, (even it will find the files that you didn't want to delete before), and so on all found, the left will list the files found by that disk, you choose to back up (generally all by default), Then "next" is there to back up the data to another disk with sufficient capacity that has been prepared before. Finally, format this disk, and the general computer format it as FAT32.

Finally, move the backed up data back to the formatted disk. The software will automatically save a portion of the files in a folder called "lostfile".

Note: I'm using option 3, which is the method of modifying drive letters. Because this method is simple, it is worth testing first.

I saw the file as soon as I changed the drive letter, but the format was still raw, so I copied the file to a portable hard drive just to be on the safe side. However, after restarting, I found that the partition format had changed to fat32.

Note: For the fourth option, it is obviously more dangerous and not worth using.

1. The last time you used it, the hot swap caused an error in the hard disk partition table.

2. Caused by hard disk poisoning.

3. Hard disk damage (bad sectors or other physical damage).

Summary. When the file system of the USB flash drive becomes RAW format, you can try to repair it by following the steps below:

When the file system of the USB flash drive becomes RAW format, you can try to repair it by following the steps below:

1.Open "My Computer" and find your USB flash drive. Right-click on the USB flash drive and select the "Properties" option.

Bi Shenbo 2In the "Properties" window, click on the "Tools" tab and then click on the "Inspect" option. 3.

In the Check Disk dialog box, select the "Automatically fix file system errors" and "Scan and try to recover bad sectors" check boxes. 4.Click the "Start" button to start checking and repairing the USB flash drive.

If the Disk Check tool for Windows is unable to repair USB flash drive, you can use third party data recovery software to recover lost files or format USB flash drive. For example, Recuva, Easeus Data Recovery, etc. are all commonly used data recovery software.

It's important to note that formatting a USB flash drive will erase all data, so only use this method when there are no other options. If you have important data stored in your USB flash drive, please back up the data before making any repairs.

Formatted with PQ, I don't know if you want to restore the file, format it with software and it will work.