Have you ever been frustrated by hidden folders after virus infection? You can see them in some programs like Directory Opus or Windows Explorer > Tools > Folder Options… > View > select Show hidden files and folders and unchecked Hide protected operating system files (Recommended), but you can’t change the hidden attribute though how hard you try using right click > property > uncheck Hidden. This is because the virus made your folders to super hidden and changed the attribute to system folders which then trying normal unhide method will not work!

What you have to do is using Windows Command Prompt (cmd)

> Click start > run > type: “cmd” > Enter then type the command:

on cmd command type your problematic drive letter eg. E: then enter – you will get this E:\> then type attrib -a -s -r -h /s /d then press Enter again and wait for a few seconds; now all your hidden folders in that drive E will be unhidden.

This is how it works:
E:\>attrib -a -s -r -h /s /d

Notice that:
attrib -a -s -r -h /s /d (To show hidden files)
attrib -a -s -r -h /s /d (To hide files)