Steps to update npm on Windows

npm-updater.txt

**This is the new best way to upgrade npm on Windows.**

**Run PowerShell as Administrator**

    Set-ExecutionPolicy Unrestricted -Scope CurrentUser -Force
    npm install -g npm-windows-upgrade
    npm-windows-upgrade


Note: Do not run `npm i -g npm`. Instead use npm-windows-upgrade to update npm going forward. Also if you run the NodeJS installer, it will replace the node version.

 - Upgrades npm in-place, where node installed it. Easy updating, update
   to the latest by running npm-windows-upgrade -p -v latest.  
 - Does not modify the default path. 
 - Does not change the default global package location. 
 - Allows easy upgrades and downgrades. 
 - Officially recommended by the NPM team. A list of versions matched between NPM and NODE (https://nodejs.org/en/download/releases/) - but you will need to download NODE INSTALLER and run that to update node
   (https://nodejs.org/en/)