For Installation Features Key High Quality — Windows 81 And Windows Server 2012 R2 Privacy Statement

Microsoft's privacy statement for Windows 8.1 Windows Server 2012 R2

To lock down both OSes:

Microsoft designed the installation process for these operating systems to include several "privacy-impacting features" that users can make decisions about during setup. Key Installation Features Microsoft's privacy statement for Windows 8

Users have the option to customize their privacy settings during the "Express Settings" phase of the installation. Choosing "Customize" allows you to: Disable automatic driver updates. Opt-out of sending usage data to Microsoft. Turn off location services. Microsoft's privacy statement for Windows 8

Windows Registry Editor Version 5.00