Radeon R9 M380 running on iMac windows 10 in boot camp keeps freezing

Need to find a fix for the screen freezing issue I have with my R9 M380 display adapter running on an iMac boot camp windows 10 environment.  current installed driver 15.201.2001.0.  I was hoping that the one released prior to this one that seemed to work better would be available but I am now unable to locate it on the AMD driver support page.  All suggestions to fixing my issue are welcome.  I need to get this stopped immediately as it bites into my work productivity, freezing up 5-6 times a day now. 

NOT GOOD!!!

 

Thank you.