Why are the documents in the USB flash drive hidden?

It should be a virus, which will change the properties of files and folders, such as adding system properties and hidden properties.

Solution: Enter "cmd" in "Start" and "Run", hit enter, and enter the command line environment.

Enter the drive letter where the USB flash drive is located (assuming h:) and press enter.

Input"dir/a", Hit enter, you can see all the files and folders under the disk, there should be "This file, it's a virus, it should be deleted first."

Input"attrib -s -h "and hit enter.

Input"del ", hit enter, and the virus can be removed.

Next, it's time to revert back to hidden folders and files.

Input"The name of the attrib -s -h folder or file"and hit enter. Note: The name of the folder or file can be entered"dir/a"and knock back to see it.

In this way, the system and hidden properties of the folder or file are removed, revealing its true identity.

In one step, you can recover all your folders and files.

The document is hidden, either by a virus or by a human being.

Instead of showing system files, it shows hidden files and folders.

You open the properties, tick the hidden box, and make sure that it is not hidden.

It's nothing, don't worry too much about it!

Virus! Workaround: Start-Run-Enter cmd-Enter-Enter-G:

ru guo ni de u pan zai dian nao li shi g pan de hua) enter attrib -a -s -r -h s d

Many viruses have such a "function". If you can mess with it like this. In general, a virus that behaves in this way does not immediately destroy the system.

Upgrading your antivirus software or updating your antivirus package will resolve the issue. After successful antivirus, check "Show all files and folders" in "Folder Options" and "View", remove the hidden attribute of the folder hidden by the virus, and then delete all the files created by the virus, the USB flash drive will return to normal, and the files in the USB flash drive will not be lost.

In the viewing interface, turn on Hidden Items, and you can display your hidden files.

If you still can't find your hidden files, you can click on the "Options" pop-up window at the back, click View, unhide the check box and select Show hidden files. Click OK. As shown in Fig

The specific steps are as follows:

1. Click to enter the "computer" to destroy the group.

2. Click on the "Tools" option in the toolbar of your computer.

3. Select "Folder Options" in the "Tools" option.

4. In Folder Options, select the View tool.

5. Select "Show Hidden Files, Folders and Drives" in "Hidden Files and File Slim Folder".

6. After clicking "Apply", you can see the hidden files in the USB flash drive. Macro suspicion.