Global NPM package installed but command not found

If the above method does not work then use this command to explicitly set the path

npm config set prefix c:/Users/<username>/AppData/Roaming/npm

The executable binaries and .cmd files end up in C:\Users\<username>\AppData\Roaming\npm (minus the node_modules at the end) so adding that path to the PATH env. variable fixed the issue.

With environment variables, the path can be abbreviated: %appdata\npm.