Hello Jason,
1) Install Icarus2
2) Click on the icon on the desktop to load the standalone-version
3) You will see a screen which says "Click here to test...", "Click here to buy..." and "Click here to activate it"
4) Click on "Click here to activate it" and select "Icarus2.t2k"
5) Restart Icarus
Further notes:
Make sure that your screen resolution is Full-HD or higher (1920 x 1080). Otherwise you might not be able to see to lower part of the GUI. To change the resolution right-click on the desktop, select display properties and set scaling to 100%.
Best Regards,
Markus