Unlocking Windows 8.1 Embedded Industry Pro: A Guide to Activation
: Organizations usually acquire these licenses through Volume Licensing agreements. For example, Windows Embedded 8.1 Industry Enterprise is available as an upgrade through Volume Licensing Trial and Evaluation 180-Day Evaluation : Microsoft offers a Windows Embedded 8.1 Industry Pro Evaluation that lasts for 180 days. Mandatory Activation windows 81 embedded industry pro product key
Unlike Windows 8.1 Pro, there was never a "Retail" box sold in stores for Embedded Industry Pro. It was strictly sold through Volume Licensing channels or pre-installed by OEMs. If you see a card or a sticker on a generic PC with this key, it is likely a Volume License Key (VLK) that may or may not be valid anymore depending on the organization that purchased it. Unlocking Windows 8
Embedded Product Key (8.0) for 8.1 install - Windows 8 Forums It was strictly sold through Volume Licensing channels
You can retrieve your BIOS key using a free tool like ProduKey (NirSoft) or a Linux Live USB to read the ACPI tables before installing Windows.