How Do I Activate the Bitdefender Setup?

How Do I Activate the Bitdefender Setup for free on Windows 10? First of all, you should choose a free or paid version of Bitdefender.

From the sidebar, you should select My Devices, then click on the plus button above "Install Bitdefender products on your devices". Now, you should choose security and then select This device to install Bitdefender on the PC you are currently using.