Some viruses used to hide files on removable usb drive. Some other viruses really destroyed documents and some other viruses disguise them self to mimics files and folder inside the usb drive just to trick the owner while the real files and folders hidden by virus. When the owner click on the files or folders, they then injecting them self into computer which then spreading everywhere and infecting documents and systems files. When the owner scan with anti virus and remove them from computer and usb drive, the real files and folder that was duplicated by viruses left unchanged — still on hidden attribute.
There are 2 ways to show and recover all hidden files after virus removal, that is attrib command line or as some people called it attrib virus trick and windows explorer folder options.
This is the most handy and easy way to unhide hidden files. All you need to do is open MS DOS command prompt, change drive to USB drive and type the attrib commands. Here’s the details how to find hidden files in usb and also hidden folders with attrib.
F:\>ATTRIB -R -S -H /S /D *
While you can use attrib to unhide files and folder on windows, the following method can show all hidden files and folders without changing their attributes. To show all hidden files and folders with Windows explorer, first you need to let Windows explorer show hidden files and system files. You can set this options on Folder Options setting. But on some case viruses also hide this menu from windows explorer in order to prevent user to fight viruses. If this problem occur, then the only option you can use is using Attrib virus trick.
Although you can use many tools to recover lost Folder Options but it is wise to recover hidden files on USB drive using uninfected computer. To let windows explorer show hidden and system files:
Now to show or search for hidden files from USB drive, open the drive on Windows Explorer. You can now see the hidden files and holder.
If in any case files and folders on your USB drive was partially hidden, you can use search menu to find hidden files using the attributes command. But somehow it’s hard to find documentation about this (Read the discussion here). Here’s some several tested and working search commands.
You can also sort files and folder based on attributes. But first you need to add attributes column into Windows Explorer for current drives or folder. To do this:
Now you have an additional column named Attributes on current drive or folder. When you click on the column title, it will then sorted based on Attributes.