How to Obtain Hardware Hash for Manually Registring Devices with Windows Autopilot
To identify a device with Windows Autopilot, the device’s unique hardware identify (hardware hash) must be captured and uploaded to the service. This is usually first step when you want to provision a machine using Windows Autopilot. The hardware hash can be uploaded by manufacturer / raeseller for new devices. However, hardware hash need to be collected manually for the devices which are already in corporate environment and not already enrolled into Microsoft Intune.