Windows 81 And Windows Server 2012 R2 Privacy Statement For Installation Features Key Best -

: A hashed version of your Product Key and the unique Product ID.

: Includes information about the operating system, nearby networks, and product keys Credentials : A hashed version of your Product Key

Geo-location Data: Based on your IP address, Microsoft may determine the general region of activation to comply with regional licensing restrictions. Installation Features and Data Transmission : A hashed version of your Product Key

: Happens automatically during setup to verify that your copy of Windows is genuine and used according to the license terms. Post-Installation Setup : A hashed version of your Product Key

If you use a volume license key, CEIP is often enabled by default for server editions. CEIP collects installation feature usage data—such as which server roles (Hyper-V, DNS, DHCP) were installed via the features key. This data is aggregated and sent to Microsoft.