SimpleTech Signature Mini 250GB External USB 2.0 Hard Drive - White Marshmallow "watch keeps stopping even new" Questions

...watch them, store other things that I'd like to keep permanently. I don't want to "wipe" the contents of the entire drive. Good grief, that isn't how this was meant to work, you are supposed to be ...

...keeps freezing anytime I plug it in and I have no way to retrieve my files. I am freaking out because I have years of my business files on it and I need to access it. I am not advanced with computers ...