Windows 11 Pro Upgrade and Activation for Intune and Defender Enrollment

Nusair 40 Reputation points
2026-09-23T07:37:35.1833333+00:00

Hi Team,

We have five devices currently running Windows 11 Home edition, and we need to enroll all of them in Microsoft Intune and Microsoft Defender.

Before enrolling the devices in Intune, we understand that they need to be upgraded from Windows 11 Home to Windows 11 Pro. We can change the edition from Windows 11 Home to Windows 11 Pro using the Microsoft generic key; however, the Windows activation status remains Not Active.

Could you please advise how we should proceed with the Windows 11 Pro activation before enrolling these devices in Intune and Microsoft Defender?

Additionally, could you please advise where we can purchase legitimate Windows 11 Pro activation licenses/key?

Thank you.
Nusair Rafa

Windows for business | Windows Client for IT Pros | Devices and deployment | Licensing and activation
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Answer accepted by question author
Harry Phan 33,400 Reputation points Independent Advisor
2026-09-23T08:12:40.13+00:00

Hello Nusair,

Upgrading from Windows 11 Home to Windows 11 Pro requires a valid license key; the generic Microsoft key only changes the edition but does not activate the OS. To properly activate, you need to purchase legitimate Windows 11 Pro licenses through official Microsoft channels. The recommended approach is to buy licenses via the Microsoft Store for Business or through a Volume Licensing agreement if your organization manages multiple devices. Alternatively, you can purchase retail product keys directly from the Microsoft Store online or authorized resellers, then apply them under Settings → System → Activation → Change product key. Once the devices are activated with genuine Pro licenses, they can be enrolled into Intune and managed with Microsoft Defender for Endpoint. This ensures compliance and avoids activation issues during enrollment.

If my answer is useful for you, please hit Accept the answer to support me.

Thank you,

Harry.

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