How do I recover data from a corrupted USB stick?

[yogesh11]

Error: The file/directory is corrupted and not readable. This message is shown when I try to open any file/folder in my USB flash drive into the system. The data is very important and anyhow I want to retrieve it from USB. Plz help me out.

Regards,
Yogesh

 

[rachelthomas]

I have recently had a problem with my usb stick it is corrupted, i got very important essays that i need to get back. Everytime i go to click on it its either telling me to submit software which will erase all my memory stick. It also says that it is a unknown USB i don't know how to resolve this solution, need help fast!