Once downloaded and installed, Shelblock software activates by default to protect your computer from ads and trackers.
You only need to have a recent Windows system (versions 7, 8, 8.1 or 10) to get it.
To do this, download Shelblock and double-click on the .exe file to start installation. In the window that opens, select the installation directory you want (by default /Program Files), accept the privacy policy and click on the green "Continue" button.
Once installation is complete, no further action is required to use Shelblock!