Pls advise if my pendrive is still useable?

I have a 4GB SanDisk pendrive. Please help me to recover the files as I only used it for less than a month.

I insert my pen drive into the hardrive. Then the dirve of the pendrive will automatically appear. Now, it doesn't happen. Even when I click on 'My computer'. it will comes up as 'Removable Disc' but that is also not happening now.

Please e-mail to Judy_Cheam@jabil.com if you have the answer