Assuming you've already downloaded and extracted the latest version of TreeWalk to a handy location on your machine and you have ensured that you have an active Internet connection from a previously secured Windows computer (Anti-Virus, etc.), just double-click the executable (.exe) file to begin the setup routine. Follow all prompts and read the documentation supplied during the install.
Finally, you'll be asked to reboot (restart) your computer, so select the "Yes" button when you're asked if you would like to restart now. After you've rebooted, find the "Check server" icon (Start > [All] Programs > TreeWalk > tools, select "Check server") and follow the prompt you'll see in the resulting window. That's it! If you're still unsure how to tell if TreeWalk installed properly, please read
the FAQ item entitled "How can I tell if TreeWalk is working?".