Not only does Microsoft make up a sizeable proportion of software spend within most organizations, that spend is across many different technologies in the IT estate, from enterprise level applications running in a virtualized datacenter to cloud-based software, to a bundled suite or standalone installation on an individual device. Although you might logically split cost-cutting initiatives by technology, the high-level strategy remains the same.
Essentially it involves right-sizing your Microsoft licenses by ensuring that you only pay for what you use and then maintaining that optimized position. Crucially, this process must be scalable. This requires a Software Asset Management (SAM) solution which provides a holistic view of the entire Microsoft estate, aggregates complex licensing metrics together, shows the compliance position, recommends changes, and can automate required changes.