Microsoft will conclude support for several key products on October 14, 2026, including Windows 11 version 24H2 and Office 2021. This end-of-support wave also affects various Azure services, Exchange Server versions, and certain .NET frameworks. Organizations must evaluate migration costs and risks associated with operating unsupported products, as the lack of updates could lead to security vulnerabilities. Extended Security Updates (ESUs) will be available for select products but at a premium cost. Migration challenges include potential hardware incompatibilities and the need for custom solutions for legacy applications. Proactive planning, inventory assessments, and prioritizing critical systems for migration are recommended strategies. The transition aligns with Microsoft's vision of promoting cloud-based and AI-enhanced technologies. Economic implications include increased IT spending, particularly affecting small and medium enterprises.