My pen drive has the data but not showing

How to Open the Hidden Files in a USB Pen Drive

While in DOS did you do a dir on the drive ? Then CD on those directories and dir to see what sub directories exist ? 
also: 
SAFE MODE WITH COMMAND PROMPT ( well it is not necessary but you should ), goto command prompt and write these commands. 

1. dir/ah ( list all hidden file/dir ) 
2. attrib -h -s -r -a *.* ( will make all of your file/dir visible ) 

go and find all your file/directories using Windows Explorer, copy wherever you want. 

Usually when virus hide files and it also remove folder options it is much difficult to get the files quickly if one is in hurry, although such virus can be removed manually (ReadRemove EXE virus manually) ;

But I’m going to tell the the way in which you can UN-hide all the hidden files by on single command.

To apply this command follow the following steps

go to Start > Run > type cmd

Dos will open type cd.. (two to three time until only drive letter left)

now type the drive letter in which you want to Unhide the files lets suppose in my case its F:

this will open the F: drive

Now type the following command attrib -r -a -s -h *.*

Press enter this command will un-hide all the hidden files in Drive F even its portablememory stick or usual hard disk

Note: This assumes g is the pen drive letter - Unhides all files on g: 

attrib -h -r -s /s /d g:\*.*

Posted by Nishad S S