We provide a 30-day warranty for the USB dongle key. If for any reason you loss or broke your dongle, you will need to contact-us and we will help you getting a new one. Valid if you re-install an operating systemīROKEN OR LOSS DONGLE: The dongle is the key for opening the software, without the dongle you will no longer be able to open WinPCSIGN.The dongle key need to be connected to the computer for opening the software.