System decommissioning is more than just shutting down outdated platforms—it’s a strategic step toward IT modernization. This comprehensive guide explores what system decommissioning entails, the various types, and how it benefits businesses through cost reduction, improved compliance, and streamlined operations. Learn how to effectively retire legacy systems while preserving critical data, minimizing risk, and accelerating digital transformation. Whether you're managing an aging IT landscape or planning a cloud migration, understanding the structured process behind system decommissioning is key to maintaining operational continuity and innovation. Explore best practices that empower organizations to move forward with confidence and control.