Unable to install or update new packages on Windows 8.1

[JaKXz]

Please see the log below. Continued from this issue.

$ npm install -g gulp
npm ERR! Windows_NT 6.3.9600
npm ERR! argv "c:\\Program Files (x86)\\nodejs\\node.exe" "c:\\Users\\Jason\\AppData\\Roaming\\npm\\
node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "gulp"
npm ERR! node v0.12.0
npm ERR! npm  v2.1.8

npm ERR! uid must be an unsigned int
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <http://github.com/npm/npm/issues>
\
npm ERR! Please include the following file with any support request:
npm ERR!     C:\Users\Jason\Source\Repos\citysight-widgets\npm-debug.log

Some things I have tried:

$ npm cache clean

$ npm uninstall -g gulp
npm WARN uninstall not installed in c:\Program Files (x86)\nodejs\node_modules: "gulp"

$ npm config del user

$ npm config get user
0
$ npm config get uid
undefined

[othiym23]

If you update to at least npm@2.3.0 (see the section on Windows), this problem should go away.