ok I rerun the BT software setup from command prompt windows as :
BT_17.1.1406.01_s64.exe /l*vx 1406_install_issue.log"
I found the two specific files Setupapi.app.log and Setupapi.dev.log
Can you be more specific and provide an email address where I can email them?
I attached a screen shot of device manager with 1406 installed