Riot not found on windows 10

[ghost]

C:\Users\User> npm install riot -g && riot

• riot@4.8.6
  updated 1 package in 0.754s
  'riot' is not recognized as an internal or external command,
  operable program or batch file.

[GianlucaGuarini]

Please read the installation information: https://github.com/riot/cli#installation or https://riot.js.org/compiler/#compilation-via-riotjs-cli

[ghost]

Thanks for the response.
The instructions don't work for me on Windows 10:
C:\Users\User>npm install @riotjs/cli -g
C:\Users\User\AppData\Roaming\npm\riot -> C:\Users\User\AppData\Roaming\npm\node_modules@riotjs\cli\index.js
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@2.1.2 (node_modules@riotjs\cli\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

• @riotjs/cli@4.0.3
  updated 1 package in 2.078s

C:\Users\User>riot --help
'riot' is not recognized as an internal or external command,
operable program or batch file.