After upgrading to the latest patch for WIN2022 and WIN2025, a DeviceHealthAttestation feature appears

[piis]

After upgrading to the latest patch for WIN2022 and WIN2025, a DeviceHealthAttestation feature appears.
Located at C:\inetpub\DeviceHealthAttestation.

 

[garlin]

Are you asking about Windows Server 2022 and 2025? It's probably this change:

February 11, 2025—KB5051979 (OS Build 20348.3207)

Improvements​

This security update includes quality improvements. Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.

• [Device Health Attestation] Fixed: When you upgrade from Windows Server 2016, a crucial item is not there. Because of this, service fails.