After the software has been downloaded and installed on your PC, connect the physical SIM reader to PC using its USB interface. If the drivers were installed correctly, Windows will do the rest. Secondly, remove the SIM card from your device and insert it into the SIM reader. Start the application from the desktop or its installation path and access the SIM card. It's practically the same operation when you connect an SD card to a mini-card reader. Only the storage differs.