Do not suggest third-party content in Windows spotlight

If you enable this policy, Windows spotlight on lock screen, Windows tips, Microsoft consumer features and other related features will no longer suggest apps and content from third-party software publishers. Users may still see suggestions and tips to make them more productive with Microsoft features and apps.

Supported on: At least Windows 10 or Windows 10 RT
Registry HiveHKEY_CURRENT_USER
Registry PathSoftware\Policies\Microsoft\Windows\CloudContent
Value NameDisableThirdPartySuggestions
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

cloudcontent.admx

Administrative Templates (Computers)

Administrative Templates (Users)