Policy
Enable Writing Assistant
This policy setting controls whether users can use the Writing Assistant feature. If you enable or don’t configure this policy setting, users will be allowed to use Writing Assistant and it will be enabled by default (unless the users disabled it). If you disable this policy setting, users won't see Writing Assistant by default. Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for Enterprise.
91d9ff8958e8 L_WritingAssistantAdminChoiceAdminChoice Registry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\common\general\writingassistantadminchoice (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\common\general\writingassistantadminchoice (disabled) = 0 Policy notes
This policy setting controls whether users can use the Writing Assistant feature. If you enable or don’t configure this policy setting, users will be allowed to use Writing Assistant and it will be enabled by default (unless the users disabled it). If you disable this policy setting, users won't see Writing Assistant by default. Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for Enterprise.