9.19. Messaging
⌘ + r › ms-settings:privacy-messaging
See Determining App List to generate a list of apps for more fine grained control of app access.
9.19.1. Allow access to messaging on this device
Disable Allow access to messaging on this device
This disables all messaging options. See Allow apps to read or send messages to manage access on a per app basis.
GPO
Allow enables.
Computer Configuration › Administrative Templates › Windows Components › App Privacy › Let Windows apps access messaging
☑
ENABLED
Default for all apps
Force Deny
Updated: 2021-02-19 Reference
Registry
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\chat
Value
SZ
Deny
Updated: 2021-02-19 Reference
9.19.2. Allow apps to read or send messages
Disable Allow apps to read or send messages
GPO
0 enables apps access to messaging.
Computer Configuration › Administrative Templates › Windows Components › App Privacy › Let Windows apps access messaging
☑
ENABLED
Default for all apps
Force Deny
Updated: 2021-02-19 Reference
Registry
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\AppPrivacy
LetAppsAccessMessaging
DWORD
2
Updated: 2021-02-19 Reference