These are the 3 windows updates that were installed on 10/12. Don't know if this is the cause of the problem but it started not working around the same time.
Windows Malicious Software Removal Tool for Windows 8, 8.1, 10 and Windows Server 2012, 2012 R2 x64 Edition - October 2016 (KB890830)
Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB3194798)
Security Update for Adobe Flash Player for Windows 10 Version 1607 (for x64-based Systems) (KB3194343)