Cruzer Blade will not format

I have the same problem, i have tried with many programs, but it still not working. I also have a 8GB SanDisk Cruzer Blade Flash Disk. When i plug it into my PC, it appears with 0 Bytes, has no label, only “Removable Disk”. When i try to explore it, windows show a message : “The disk in drive H is not formatted Do you want to format it now?”, and so, when i try to format it, the progress bar is in the 100%, but a message appears: “Windows was Unable to complete the format”, also, the capacity shown is 64 Mb. When i use the HP USB Format Tool, the device appears as "SanDisk FireBird 1.04(64Mb) ". How can i repair my USB?

Please i need Help!.

Thanks in advance.