ExecutionPolicy script is not recognized as an internal or external command

 

Fix : Run the command from PowerShell! (PowerShell as Administrator )

If above solution does not work - try this 

Dont work for me: and in cmd, and powershell, in all cases script was runned with admin permission, but I get the same error.
I`m also try to run it from npm folder where its located.

PS C:\Users\mishelen\AppData\Roaming\npm> npm-windows-upgrade
npm-windows-upgrade 0.5.1
? This tool will upgrade npm. Do you want to continue? Yes
Scripts cannot be executed on this system.
To fix, run the command below as Administrator in PowerShell and try again:
Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force

Refer: https://github.com/felixrieseberg/npm-windows-upgrade/issues/35