See the formatting suggestiong in the blue bar at the top.
Make sure your formatting looks liike the following:
- platform: wake_on_lan
name: HTPC Switch
mac_address: "78:2b:cb:9f:60:cd"
host: 192.168.1.5
turn_off:
service: hassio.addon_stdin
data:
addon: core_rpc_shutdown
input: htpc
make sure your user is the user listed a c:/users/
Make sure you setup your windows 10 machine to allow the remote shutdown