Apple's Boot Camp and related Windows drivers will do this for you, somewhat automatically. Boot Camp is included with OS X and is located in /Applications/Utilities. OS X Mavericks (10.9.2) uses Boot Camp 5.1.2. The latter will non-destructively add a Windows boot partition to an existing installation of OS X. Should you choose to remove the Windows partition in the future, you must use Boot Camp for that task.
When you first launch Boot Camp, select the button, Open Boot Camp Help.