nodejs windows

nodejs/nodejs.md

@@ -26,3 +26,9 @@ sudo npm cache clean -f
 2. own the instalation folders
    * `sudo chown -R $(whoami) /usr/local/bin /usr/local/lib /usr/local/include /usr/local/share`
 3. install n: `sudo npm install -g n`
+
+
+## upgrading npm in windows
+`npm install -g npm-windows-upgrade`
+or just download from the wesite
+