Hi, so my toshiba usb drive which is black and says on the back; first line: N723 second line: Z218 then says PA3876 (I am telling you this because I have spent the past two hours trying to google what Toshiba Usb product it is to no avail) just stopped working on any device and every usb I own. Laptop, tablet and desktop. It isn't even telling me to format it, it just makes the noise that its been connected and shows "(D" in my computer. It won't read anything on the disk and says "please insert disk in (D". It is not even recognising how much space is on the disk or anything at all. Please help I did have some important things on there.