The first thing you should try is simply plug it in and see if it gets recognized. If it is then you work with it just like you would work with an external hard drive, you can copy and past images and files, delete file, etc.

If you get a message which says “hard drive not recognized” then you should find the CD that came with the digital camera, insert it into your computer’s CD ROM and install all the necessary software.

If you don’t have the CD then you need to find a driver for your digital camera. Simply search on Google for a driver for you particular digital camera model or visit the manufacturers’s site.