You have 25 Windows 10 Pro PCs and a Microsoft 365 E5 subscription managed by Intune. You need to perform an in-place upgrade to Windows 11 Enterprise while minimizing administrative effort. Which method should you use?

Subscription Activation is the correct choice because it leverages your existing Microsoft 365 E5 subscription to automatically upgrade eligible Windows 10 Pro devices to Windows 11 Enterprise. This process is managed through Intune and requires minimal administrative effort as it doesn't involve reimaging or manual key entry. MDT and Configuration Manager are imaging solutions that would require significant setup and deployment effort, which is contrary to minimizing administrative effort. Windows Autopilot is primarily for device provisioning and resetting, not for in-place OS upgrades from Pro to Enterprise editions using subscription benefits.