Tiller works with Windows 7, 8.1 and 10, and requires software to work with your computer. You can download the software at gettiller.com/download.
Once you've downloaded the Tiller software, you'll find it in your Downloads folder on your computer.
Double click the Tiller file, and the installer will run.
A dialog may appear asking you to confirm you'd like to install the application:
Click "Run" and the installer will install the Tiller software.
And you've installed Tiller!