If you turn on the new ransomware protection in Windows 10 you need to add TSW2 as an allowed app. The easiest way to do this is to run the game and it will turn up in the list of blocked applications in your notifications. Click on the notification and click Actions then From then on it should be fine. If you don't do this TSW2 cannot save configuration, cannot save your DTG Live credentials and cannot save mastery among other things. Paul