Add my device back on

I accidentally delete my device that I installed Internet security on. I had the free Anti-Virus on there, then upgraded to Internet Security. I had both on there but I screwed up and deleted the device with the security internet on it. Now it only shows the free version. How do I get it back on? :-\

What do you mean by device?

you can download and install avast anytime you want… Download link is on avast website

When you open up your user interface and click on: my.avast.com. then you sign on and you can see the devices you have the software installed on. Well, I deleted by accident, the device that I had installed the internet security on. It just shows the free anti virus that I was trying out to see how good the software was. The I upgraded to the internet security and the deleted the dang device it was on. :cry: