vuejs setup error - ExecutionPolicy Unrestricted

npm\vue.ps1 

cannot be loaded because running scripts is disabled on   

this system. For more information, see 

about_Execution_Policies at 

https:/go.microsoft.com/fwlink/?LinkID=135170.

At line:1 char:1

+ ~~~

    + CategoryInfo          : SecurityError: (:) [], PSS  

   ecurityException

    + FullyQualifiedErrorId : UnauthorizedAccess

soluion:

 Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted