mkdir \temp1 cd \temp1

diagnostic information

npm -v
node -v node -p process.versions node -p process.platform node -p process.arch

installation

npm install node-sass

if installed successfully

.\node_modules.bin\node-sass --version

if version is < 3.0.0

node -p "console.log(require('node-sass').info())"

if version is > 3.0.0

node -p "console.log(require('node-sass').info)"

else if it fails

cd node_modules\node-sass\vendor

delete win\binding.node file and

download the appropriate file in that directory manually from:

https://github.com/sass/node-sass-binaries/

(for instance: https://github.com/sass/node-sass-binaries/tree/v2.1.1)

node -p "console.log(require('node-sass').info"

once this is done, delete temp1

rmdir /s/q \temp1

or if you were using powershell

rm -r \temp1