| Subject | English | Korean |
| comp., MS | custom OS image | 사용자 지정 OS 이미지 (The user-customized virtual hard disks (VHDs) that define the operating environment hosted by the VM role) |
| comp., MS | guest OS | 게스트 OS (The operating system running on a virtual machine) |
| comp., MS | OS upgrade mode | OS 업그레이드 모드 (The options for applying guest OS upgrades to the VMs. Available options are automatic, in which the OS is upgraded whenever a new guest OS is released in Windows Azure, and manual, in which the user chooses when to upgrade the VMs and what guest OS version to upgrade to) |
| comp., MS | Windows OS Loader | Windows OS 로더 (A Boot Configuration Data (BCD) application object) |