I had a lot of trouble with the Win 10 install and was advised by Dell to do a clean install. That cleaned up most of the driver problems I had and the system seems to be functioning well.
Two lingering problems:
1. The system does not completely power off all the time. The keyboard back-lighting stays on. This seems to happen when the system is on for a long period. I looked at system events but found nothing I could connect to the problem.
2. The wireless function button does nothing. On other laptops I have it switches to Airplane Mode.