hi @suppenkoch, very sorry to hear about your continuing difficulties. After internal analysis by our development team, it does appear that there is an issue with certains systems running the latest RS5 update to Windows 10 in conjunction with the current version of the Tobii Eye Tracking Core Software.
We are actively working to identify the cause of the problem and rectify the situation. Thank you for your patience and apologies once more for your unfortunate experience.
In the meantime, we can only recommend that for those systems affected, to roll back to a previous windows build until the issue has been resolved in a forthcoming installer version.