1. Open CMD;
2. run "diskpart";
3. run "list disk" to find your usb flash disk;
4. run "select disk #number ";
5. run "clean";
6. run "create partition primary";
7. run "active";
8. run "select partition 1";
9. run "format fs fat32";
10. waiting util it done and its gonna talk a while. For me it took me 3 hours.
2. run "diskpart";
3. run "list disk" to find your usb flash disk;
4. run "select disk #number ";
5. run "clean";
6. run "create partition primary";
7. run "active";
8. run "select partition 1";
9. run "format fs fat32";
10. waiting util it done and its gonna talk a while. For me it took me 3 hours.