The majority of large Enterprises are still using Windows 7 versus Windows 8/8.1. The OEM built machines come with Windows 8/8.1 standard and the machines must be reimaged to the Standard Operating Environment (SOE) which includes the Windows 7 OS.
Occasionally things get lost, little things like charging tips, cables, and adaptors, big things like power supply units, wallets, keys, girlfriends, etc.