Is your data hidden in your pendrive due to virus?

Try the following command in cmd prompt:

start->Run->cmd

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



here h: stands for the device in which my pen drive is present.It may vary for you. You can also use some recovery software.

What is Pen Drive Data Recovery Software

Pen Drive Data Recovery Software recovers deleted text files and folders, music files, audio-video songs, photographs, images from formatted USB Pen drive storage media. Easy to use USB Thumb drive data retrieval utility salvage lost data from Pen drive popularly known as Thumb Drive, Key Drive, Memory stick, Jump drive, USB flash drive etc.

Award winning USB Pen drive data backup tool support all major Pen drives brands including Apacer, Kingmax, Lexar, Transcend, Kingston, Sony, SanDisk in all storage capacities i.e. 64MB, 128MB, 256MB, 512MB, 1GB, 2GB, 4GB, 8GB and even higher capacity drives. Memory stick data recovery software provide attractive graphical user interface, so that user can easily understand software features and functionality without knowing technical skills and training.

you can download demo version from here:

http://www.data-recovery-digital-camera.com/downloads/pen-drive-data-recovery-demo.exe