Now I have more complications. During uninstall of ComodoFW Appguard 4.0 died on reboot. In shock, I inadvertantly installed 3.5 in error. Which did NOT uninstall cleanly. And now 4.0 will not install even via Administrator. see pic. The only Security programs installed are Sandboxie & MSE. Or could it be Blueridge is paranoid about Lics? My AG 4.0 has a lic. but maybe it didn't like being uninstalled earlier?