41's the charm. Finally success!!!!! After doing a Windows refresh, and installing only my antivirus (Norton), my chosen browser (Firefox), and no windows updates, I have successfully installed NXT 3 complete. Observations: Direct X 9 install took place where it hadn't during other installs. When the refresh was performed some files were reported missing and required Win 8.1 Pro install disk to continue. Don't know if this means anything to you but thought I should mention this, in case it does. Thank you for all your help and patience. I learned a few things on this adventure, and am now the wiser for it. I only hope that the programs meet my needs and expectations. They always have in the past so I'm not too worried. Again thank you. Should you have any questions for me I will periodically check back to this post and try to answer them. I hope our adventure proves help-full to someone in the future.