Such devices do not last forever. Copy your files out and get a new drive.
Posting your email in public forums is a bad idea. We can remove this post upon request.
i am having some problems with my thumb drive. in the locked mode, i can view buy not edit or erase data that is in, or store new info. when it is unlocked, it is not sensed by my laptop at all. is there a reset thing and how should i go about solving this. please reply to my email email@example.com as soon as possible, thanks.