Disable Built-in Quick Styles

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\office\16.0\common\smartart graphics

Value name: hidebuiltindiagramstyles

Enabled: hidebuiltindiagramstyles = 1

Disabled: hidebuiltindiagramstyles = 0

Specify whether or not to show the built-in Quick Styles.