I got this screen when I try to activate the prodect key and it's just stay like this for ~3 min then that window vanish without doing any other step.
1. server down or busy.
2. You had another AV installed and either it is still installed or you did not remove it using its own removal tool so it left bits installed. this can stop activation.
Read this re my thread with another user
Please answer for the below questions
What is your Operating system ? Windows XP/Vista/7/8
What is the type of Internet Connection ? Cable/DSL/Wireless