To connect to the Internet, plug the modem to an available USB port. The autorun installation should start at this time, and you simply need to follow the instructions. Of course, there is a possibility the setup package and drivers are lacking compatibility with the OS. In this case, right click the drive in the Computer and select Explore. Locate the software, right click it and choose Properties > Compatibility > Windows XP. Reinstall the software with Administrator rights and then reboot the PC. After the PC reboots, plug the USB modem and then follow the installation and you should be able to use it.