Can I use OEM licensing for devices already deployed?

No. OEM licensing is for new devices built by the manufacturer. Existing systems are licensed through volume licensing.

What is the difference between KMS and MAK?

KMS activates devices against an internal activation host; MAK activates devices individually against Microsoft’s activation service. Both are volume activation methods.

Does Windows IoT Enterprise support volume licensing?

Yes. Organizations can license existing systems through volume licensing with KMS or MAK activation, in addition to OEM licensing for new devices.

What records do I need for a Microsoft license review?

Device inventory mapped to invoices and activation records. For OEM, include build reports; for volume, include agreement and activation counts.

Windows IoT Licensing Models Explained: OEM vs Volume