update npm-windows
powershell Set-ExecutionPolicy RemoteSigned npm install -g npm-windows-upgrade npm-windows-upgrade
Source: stackoverflow.com
how to update npm version in windows
On Win10: Run PowerShell as Administrator and sequentially enter commands: Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force npm install -g npm-windows-upgrade npm-windows-upgrade
Source: www.npmjs.com
npm upgrade windows
npm install --global --production npm-windows-upgrade npm-windows-upgrade
Source: www.npmjs.com