in-place migration

In-place migration on Windows Server refers to upgrading an existing operating system installation to a newer version without reinstalling applications or migrating data. Recent discussions on WindowsForum.com focus on Microsoft's introduction of Windows Server 2025 as an optional Windows Update feature upgrade for Windows Server 2019 and 2022 systems. This approach allows administrators to perform supported in-place upgrades without ISO media after installing the March 2026 cumulative updates and enabling the feature-update policy. The shift represents a move from traditional image-based upgrades to a managed servicing event, though ease of initiation does not guarantee safety. Key considerations include proper planning, rollback strategies, and understanding the implications for enterprise environments.