Virtual machine, or VM

This is essentially a standalone computer installed within another platform/OS.

A virtual machine is also sometimes called a guest machine. This typically provides a complete system platform with its own set of operating system, hardware configurations, and installed software packages, but it still runs on top of a "host" machine that has the main OS (operating system) and the physical hardware.

There are different applications that can create and run virtual machines. A partial list includes the following:

ISO file

This is a disk image; an archive file of an optical disc in a format defined by the International Organization for Standardization (ISO). This contains archived CD/DVD content.

In a VM, an ISO file can be treated as a "real" CD/DVD. All you need to do is to point the CD/DVD settings to the ISO file path.

If you need to, you can also burn the ISO file to CD/DVD, or you can create ISO files using any CD/DVD image file processing tool, such as:

Service account

This is the account used to run services running on a Windows operating system. To learn more about service accounts, visit https://msdn.microsoft.com/en-ca/library/windows/desktop/ms686005.aspx.