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First what I wanna make clear is that in the official website the detailed process of installation has been described. you could call it throught the link 

http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/

in the front of the page, one question should be taken into consideration. as the following describes,

and just now I have installed the hotfix to resolve an issue with memory mapped files on windows.

according to the tip in the mongodb manual, the command "wmic os get osarchitecture" could find which version of windos you are running.  So supprising. 

because I download the zip version of software, in the software package, it contains the following content. 

and then in the d:program( I always install the devlopment software in the d:program). it depends on you. 

Now let's start the server. 

from the last sentence, we could know infomation that the server run successfully, and default port is 27017. 

use mongo command we could find the version installed , and then test success.

Exception what may happened. 

see http://blog.mongodb.org/post/137788967/32-bit-limitations