Install NodeJS without Admin Right

1)Download nodejs from below location and extract to some local folder
http://nodejs.org/dist/latest/

2)Download npm from the below location and extract to some local folder
https://github.com/npm/npm/releases

3)Set PATH Variable either by below command or from Environment variable setting in your computer, when you have access
set PATH=%PATH%;C:\NODE_LOC\;C:\NPM_LOC


4)Set up NPM when its behind proxy
npm config set proxy http://proxy:port
npm config set https-proxy https://proxy:port
or with credential
npm config set proxy http://username:password@proxy:port
npm config set https-proxy https://username:password@proxy:port

5)Test by the below command
>node -v
>npm -v
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Check the current setting by following comment :
npm config ls -l

Remove the Proxy set as above step 4 :
npm config rm proxy npm config rm https-proxy

Some strange issues can be resolved by the following commands :
npm cache clean