2. Go to Start > Run > type in: regedit > hit enter. On the dialog box that opens up navigate to the following path:
Find the entry named "WriteProtect" if the value is set to 0x00000001 (1), double click it and set the value to zero.
Reboot your computer and try your flash drive.
Note: if you don't have the StorageDevicePolicies folder, it might do good to create it and then create a DWORD key inside called WriteProtect and set it to zero.