Another Note: Seems like it is something within the Avast FireWall component that causes it.
I reinstalled AIS 7, Chose "Custom Install" and installed without the firewall. have rebooted the system repeatedly and have yet to experience any problems.
Though due to the damage done by all the hard restarts I'm going to reformat my computer.
EDIT: Computer reformatted. AIS 7 now installs and works properly. May close.