As far as traditional methods of installing Windows go, the latest iteration of the Windows client can be easily deployed from media such as DVDs and CDs. But in addition to the default installation method for retail flavors of the operating system, Windows 7 can also be deployed via the OEM Preinstallation Kit (OPK) included in the OEM System Builder Pack, through the Windows Automated Installation Kit (AIK), via USB sticks and even from a Windows Phone.