Hi Vincent,
If the hardware supports it and your licensing is valid, there are 2 main ways:
Option A: In-place upgrade
Download the Windows 11 Installation Assistant or ISO from Microsoft: https://www.microsoft.com/en-au/software-download/windows11
Run the installer → it will check hardware & carry your Enterprise edition forward.
If your Enterprise license comes from an organization (e.g., your workplace), you’ll need to connect the NUCs to their Azure AD / KMS server after upgrade to reactivate.
Option B: Clean install with Enterprise media
Download the Windows 11 Enterprise ISO from the Microsoft Volume Licensing Service Center
or https://visualstudio.microsoft.com/subscriptions/
Create a bootable USB (use Rufus or the Media Creation Tool).
Boot NUC → install → skip key entry (Enterprise activates later via KMS/Azure AD).
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