Hi @tim458458, thanks for getting in touch. You can as a workaround create a batchfile to run after windows login which contains the lines:
TIMEOUT /T 300
net start "Tobii Service"Which will wait 5 minutes after login to close the Tobii Service.
Be sure to use Windows Task Scheduler to setup this script so you can configure it to be executed as Admin.
However, this would only work between system restarts, not logoff/logon.
Services (such as the Tobii service) continue to run outside of a user session, and so cannot be ‘turned on’ unless a user logs in, hence the reason for keeping the service running to ensure windows hello can always be reliably used. However, perhaps this solution meets your needs. Best Wishes.