Forgot to mention, because this is a business laptop, Dell provides the install disk for Windows 8. Most laptops, even other business laptops, does not provide you with an install disk. Instead, the "install disk" exists as a partition on the hard drive, if you need to reinstall Windows for any reason. In this case, if the hard drive dies, then you would need to purchase a retail version of Windows to be installed on a new hard drive.
Because this laptop ships with the install disk for Windows 8, in the event the hard drives crash, you will be able to re-install Windows 8 on a brand new hard drive using the disk.