Why is the data installed in the USB flash drive missing for no reason?

Hello, if you want to understand this situation, you must first know the structure inside the USB disk, the inside of the USB disk is the EEPROM data memory, its control principle is the voltage control gate transistor voltage high and low value, the junction capacitance of the gate transistor can save the voltage value for a long time, the main reason for saving data after power failure is to add a floating gate and a selection gate to the original transistor. A floating shed is formed on a semiconductor where the current is conducted in one direction between the source and the drain. The floating gate is encased with a silicon-oxide film insulator.

Above it is the selection of control of the conduction current between the source and drain control gates. The data is 0 or 1 depending on whether there are electrons in the floating gate formed on the silicon substrate. 0 with electrons and 1 without electrons.

As the name suggests, flash memory is initialized by deleting data before writing. You use yes 8G USB disk it has a low fault tolerance, your situation is likely to be rewritten by the level, the large capacity of the USB disk in the number of transistors, the probability of errors is also large, if the data is very important, you can use easyrecovery Chinese version of this software to recover the following, but if the level is rewritten, it is difficult to recover, I hope mine is helpful to you, thank you!

U disk problem, I used to have a Kingston U disk, loaded things into it to see the probability, put it in and often don't see it.

Oh, it's hidden! Poisoned... Formatting is OK.

In this case, the USB flash drive file is hidden, and the way to find out the hidden file is:

Method 1: Take the "My**" folder of G drive as an example: click the "Start" button, enter cmd in the run, start the ms-dos window and enter the command: attrib g:

My**"-s -h -r After entering, look at the U disk, and "my**" appears again.

If you want to display all the files on the G drive, you can enter attrib g:"*"-s -h -r s dattrib syntax paraphrasing:

r sets read-only file properties. -r clears read-only file attributes. +a to set archive properties.

a Clear archive attributes. +s to set system file properties. -s clears system file attributes.

h Set the hidden file attributes. -h clears hidden file attributes. s applies attrib and any command-line options to matching files in the current directory and all of its subdirectories.

d Apply attrib and any command-line options to the directory. Show help at the command prompt.

Method 2 introduces one of the simplest methods that is almost universally known.

Newbies must know that this method can only restore hidden files simply, when encountering "stubborn" symptoms, please use method 1 to open the USB flash drive, click the "organization" button in the menu bar in the upper left corner (win7).

If these two methods can't be solved, then you can only turn to professional software.

The virus has changed your files to be hidden, so you can't see them. You can set the tool Folder Options to view, show hidden files, and you can see your original files. Whether you can use it depends on the damage caused by the virus, or you can scan it with other antivirus software.

It should be hidden by a virus.,It is recommended that you go to the next USB flash drive anti-virus expert.,First antivirus.,And then use it to fix "hidden files and folders that can't be displayed".,You can show the hidden files.。

Well, you're right to suspect, the common one is what you said about the USB flash drive virus, which will generate an exe file for the file, and the icon is the icon of the folder. Normal files are hidden, you can kill the virus, and you can restore the hidden ones to normal by killing them. If there is no recovery, the setting tool Folder Options view, showing the hidden files.

That's it.

That's right, it's forced to hide by the virus, and you can get it back if you use it.

The common reasons for loss of files from USB flash drive are:

The file was deleted by mistake. Accidental deletion of files is a very common cause of data loss, and many users have encountered the problem of accidental deletion of files when dealing with data.

The file is dragged to a different folder. If there are multiple folders on the USB flash drive, a file is accidentally dragged to another folder, and then mistakenly thinks that the file is gone.

Virus destruction. Since the USB flash drive is often used on different computers, the probability of virus infection will be relatively high, and some computer viruses will maliciously delete files, and the files in the USB flash drive will be deleted without the user's knowledge.

Shear. When moving a file, use "Cut" instead of "Copy", and after the operation is completed, the original cut file will be deleted, and the file will no longer be visible.

The file is hidden. If the file is hidden, it will not be visible. You can look at the capacity of the visible files, and then compare the use of USB flash drive space to know whether the files are hidden.

Answer: First of all, check whether the capacity is reduced in the attributes of the U drive letter, if not, it may be caused by a virus; In the folder [Tools] option, select [Folder Options], click the [View] tab, and check [Show hidden files, folders, or drives] in the advanced settings to display hidden files. Here's a closer look:

Why did the files stored in the USB flash drive disappear by themselves?

1. First of all, right-click on the drive letter of the USB flash drive of my computer, check whether the storage space of the USB flash drive is reduced in the properties, if it is not reduced, it means that your files still exist but have been hidden;

2. You can open a folder casually, click the [Tools] option at the top, select [Folder Options], click the [View] tab, find [Show hidden files, folders or drives] in the advanced settings, check it, click [Apply], [OK]; This will show you the files in the folder that have been hidden.

Question: Can I operate it on my phone without a computer?

There are viruses, antivirus. To hide a file, click Tools - Folder Options - View - check all folders in it, and do not select Hide protected files.

If your file is important, you open your USB flash drive and right-click, create a new compressed file, and then go up, you can display your file, and then copy it to your computer. Then format your USB flash drive for a poop. Then you will copy the file you just now.

By the way, I will send you a USB flash drive encryption tool.

Attachment: USB flash drive encryption. rar

USB flash drive files disappear and can be repaired in the following ways:

1) Click "Start" in the lower left corner of the desktop to enter "Run".

2) On the operation interface, enter "cmd" and press enter to confirm;

3) A black command prompt window comes out, type "chkdsk x: f" in the cursor (excluding quotation marks, x represents the drive letter where the USB flash drive is located), and then press enter, wait for the automatic repair.

Method Steps:

1. Right-click on the Windows logo in the lower left corner of the desktop, select "Control Panel", and you can also find it in the start menu;

2. After opening the control panel window, select "Appearance and Personalization", and then select "File Explorer Options" in the new page;

<>3. Then switch to the View tab, scroll the mouse, find the hidden part of the folder, and click to show the hidden files and folders;

4. Back to the U disk, you can see that the hidden folder has been displayed, in order to avoid hiding again, right-click the folder, remove the checkmark in front of the hidden;

5. Start the software, select the USB flash drive in the list on the left, and you can see all the folders on the right side, including the hidden folders;

6. Right-click the folder we want to display, such as the proposal folder here, select Copy to Desktop, and then format the U disk to completely eliminate the virus, and finally copy the file to the U disk to save it;

7. There is also a situation caused by deletion, or use this software, select the U disk, select the recovery file, click to recover the accidentally deleted file or complete recovery, after the scan is completed, select the corresponding folder for recovery operation.

It's definitely poisoned, but don't worry, set your computer folder properties to show hidden files!

After right-clicking to open the USB flash drive, there must be some hidden folder in it, where your files are placed.

It is recommended to take such a USB flash drive to a professional place to do data recovery, because if you get the recovery software yourself, it may destroy the data, and you will not be able to recover it by a professional person.

It should be hidden.

Open any folder - Tools - Folder Options - View - Show hidden files and folders, and remove the checkbox in front of Hide System Protected Files.

The virus files are hidden, my computer - Tools - Folder Options - View - will show all files and folders with a checkmark, and also uncheck the protected operating system files should be fine!

The landlord here to find a hard disk recovery tool, can recover the files in the USB flash drive, the hard disk recovery doctor can do.

Why are the files in the USB flash drive missing?

The files in the USB flash drive are gone.

Angkor shares how to recover USB flash drive data!