windows npm error
if windows npm errors or fails to run
npm : File C:\Program Files\nodejs\npm.ps1 cannot be loaded. The file C:\Program Files\nodejs\npm.ps1 is not digitally signed. You cannot run
this script on the current system. For more information about running scripts and setting execution policy, see about_Execution_Policies at
https:/go.microsoft.com/fwlink/?LinkID=135170.
open PowerShell as an Administrator
run `Set-ExecutionPolicy RemoteSigned`
then rerun your npm command