Hitachi Energy has migrated over 40,000 desktops to Windows 11 across 12 countries, starting with a pilot of 500 devices in November 2023 and full rollout beginning in March 2024, expected to complete by October 2024. The company assessed 45,335 devices, with 43,568 suitable for upgrade, and found 2,330 out of 3,034 applications compatible with Windows 11, achieving a 76% compatibility rate. Approximately 40,600 devices, nearly 90%, successfully transitioned to Windows 11, while the rest were upgraded to Windows 10. The migration utilized ManagementStudio integrated with various platforms for efficiency, with nearly 10,000 devices upgraded in May 2024. A pilot program tested the new OS with selected users to identify issues before broader deployment. Transitioning is crucial as Windows 10 approaches end-of-support, with Microsoft addressing numerous vulnerabilities in its updates.