Seems like rclone.exe is placed in a folder in the PATH of your Admin and that isn't included in the PATH of your local user. Try
./rclone version
in the folder where rclone is placed.
Tip: Navigate to the rclone folder in Explorer and then type "powershell" in the addressbar, then PowerShell opens in that folder 
So is rclone and it also has a GUI if you like that you can activate like this (from the rclone folder)
./rclone rcd --rc-web-gui
and read more about here: https://rclone.org/gui/