The official specifically covering installation and setup features is primarily accessible through Microsoft's legacy download portals. The most important links for this specific statement are:
: For compatible hardware, device encryption is automatically turned on if you use a Microsoft account during setup. A recovery key is backed up to your OneDrive account to help you regain access if hardware failures occur. Post-Installation Privacy Management
Note: This link redirects to a broader Microsoft Privacy Statement, but the LinkId=314389 specifically targets the version applicable to Windows 8.1/2012 R2 features. For offline or audit purposes, Microsoft provides an archived copy under the "Enterprise & Developer" section.