I have two thumb drives that all of the sudden stopped working. I plug them in and the computer pops up the sandisk autorun option and a window that says i have to format the drive. When I try to format it it says that the drive cant be formatted. Under the properties it has that the drive contains 0 bytes with a capacity of 0 bytes. when i click on the drive to open it normally it says insert blank disk into the drive. The thing that really confuses me is that the autorun disk still exists and functions up to the point where it loads where it flashes an error message because windows cannot access the drive. Does anyone know what the issue is here? what i could have done to cause this or how can i fix it? can i fix it at all? Any help would be great because i really need the thumb drive. Thanks a lot.