The process for installing the Funktion command-line client on Windows is similar to that of macOS. First of all, open a PowerShell window as the admin user by selecting Run as Administrator from the PowerShell menu in the taskbar. Once open, you should see that you are in the folder C:\WINDOWS\system32; if you aren't, then run:
$ cd C:\WINDOWS\system32
Once you are in the in the C:\WINDOWS\system32 folder run the following command:
$ Invoke-WebRequest -Uri https://github.com/funktionio/funktion/releases/download/v1.0.14/funktion-windows-amd64.exe -UseBasicParsing -OutFile funktion.exe
You should be able to then run the following command to check the version of the Funktion command-line client installed by running: ...