The HD6xxx series has reached peak optimisation and been moved to legacy status, there will not be any further driver updates for your product. More information availablehere. Unfortunately this means the recommended action would be to roll back to the older Windows 10 build.
The latest Crimson driver for your system is 16.2.1 and is available here.
The last Catalyst driver for your system is 15.11.1 Beta and is available here.
I would recommend using DDU to sweep your system of AMD drivers, and then trying the drivers above to see if they resolve your issue.