Most of the time when downloading ImageConverter Plus from our website, activation is pretty easy and does not cause any issues. Still, it gets more complicated when your computer is not connected to the Internet. The good news is that activation is still possible; the bad news is that you still need to have access to another computer that is connected to the Internet at least one time to activate your software. Here is the link you need to enter into the browser on a computer connected to the Internet: https://www.imageconverterplus.com/activation-form/. Then, enter the serial number and ID number generated on the computer with installed ImageConverter Plus version into the web form. The browser will display your activation key. This is the key you will need to enter into your version of ImageConverter Plus when it requires activation. Feel free to let us know if you still encounter issues. Our support service will be there to help.