This little Tip can save you from a lot of trouble when suddenly your drive or folder gets disappeared from Windows Explorer & you only see it as a hidden folder or file. When this is the case it usually indicates either of a file system malfunction or a small time virus attack.
Don’t be alarmed. Just open command prompt.
For Windows XP: Go to run and type CMD & press Enter.
For Windows 7/Vista : Type CMD in start Menu, Right Click and run as administrator. ( both these Operating Systems need elevated rights to perform this task)
go to your drive of folder. Assuming Drive letter to be D here (Just replace D with your Drive letter )
Now if you are working with a single file or folder, navigate to the folder.
D:\>foldername>attrib –S –H “file or folder name” /S /D ( file or folder name without Quotes )
If you are dealing with multiple files & folders or even an External Drive, type:
D:\>attrib –S –H *.* /S /D ( press Enter )
In case of External Drive just move to your drive by typing in the drive letter in the Command Prompt. ( Example H: )