Error: MongoDB - Hotfix KB2731284 or later update is not installed

If you get the following error, before installing the hot fix I suggest you try something small first.

Try creating the folder structure C:\data\db and run the command again. Worked for me on Windows 7 64-bit. Hot fixes have not usually been tested and may have side effects which is risky specially if you are working on a office laptop.
Also, the default installation makes two folders under program files for Mongo and the server. I find this confusing and not convenient. Skip the default, go with custom and just change the installation path. This is suggested as the default installation not giving the option to change directory as of writing this post.
Once installed just run mongod.exe in the bin folder from a command prompt, you should see the following:

Leave a comment if this helped you.

Cheers,
Malaka