I just did a clean install of 64-bit Win 10 Preview Build 14951 from an install.esd converted to an iso image. I go to Turn Windows features on or off and check the box marked Windows Subsystem for Linux (Beta). When my system reboots, an error message flashes by so fast, I can't read it and Bash isn't installed. I have Developer mode turned on and am an administrator on this computer. FSC /scannow and DISM show no errors at all. I really don't want to have to reinstall Windows.
What else can I do?

TIA

Tom L