Getting error while running mongod.exe ?

Question

System thrown following errors:

"2015-06-20T14:25:26.000+0530 I CONTROL Hotfix KB2731284 or later update is not
installed, will zero-out data files
2015-06-20T14:25:26.055+0530 I STORAGE [initandlisten] exception in initAndList
en: 29 Data directory C:\data\db\ not found., terminating
2015-06-20T14:25:26.057+0530 I CONTROL [initandlisten] dbexit: rc: 100"

Answer 1

en: 29 Data directory C:\data\db\ not found., terminating
please give a glance to this line.... its seams data\db directory does not exist.

you can create from command line using mkdire data\db command and run again all the commands needed for installing mongoDB.