John, thanks for that info. My Windows 7 installation is on partition “D” which also contains some various data folders. If all I do is delete the Win 7 boot in System Config, and delete the Windows folder on the “D” drive, am I going to run into trouble there? Can I also delete the Program Files and Program Files (x86) from within the “D” drive without Win 10 issues, since everything Win 10 lives on “C”?