npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\
node_modules\npm\bin\npm-cli.`enter code here`js" "install" "npm@latest" "-g"

npm ERR! node v6.9.5
npm ERR! npm  v3.10.10
npm ERR! code ECONNR`enter code here`EFUSED
npm ERR! errno ECONNREFUSED
npm ERR! syscall connect

npm ERR! Error: connect ECONNREFUSED xxx.xxx.xx.xxx:xxx
npm ERR!     at Object.exports._errnoException (util.js:1022:11)
npm ERR! If you are behind a proxy, please make sure that the
npm ERR! 'proxy' config is set properly.  See: 'npm help config'