I downloaded 64-bit zipped version of mongodb for windows, created '/data/db' as instructed. 
Now, when I run **"mongod"** command, I am getting the following error & the mongodb server shuts down automatically. 

*"ERROR : listen() failed error-10013. An attempt was made to access socket in a way forbidden by its access permissions. "*

Please help me to clear the firewall settings in windows to prevent this error & run mongodb.