I have a removable USB 128 flash drive (the brand is Actina) that stopped working. It worked fine, then I plugged it into a computer on campus. I attempted to save files on it, but the system refused. I removed the drive from the computer's USB and got a warning that unsafe removing may cause loss of data. After that I plugged it back in to my computer at home and it said that the drive is not formatted. Since I couldn't recover any of my data, I decided to go ahead and format, but now every time I attempt to open the drive it says it is not formatted. When I try to format it shows thist message "The device in drive E cannot be formatted". The Device Manager shows the drive as unreadable. Is it permanently damaged? Any tips on how to mak it work?