New Version Blew Out Start Menu & Ethernet Connection

After upgrading to the most recent version, I lost the Start Menu in Windows 10 x64, then lost the ethernet connection entirely (no, it is NOT hardware-related). Uninstalling initially fixed things, then when I had to do a restore, I now have remnants of Comodo causing even MORE problems! How can I completely and cleanly remove what remains of Comodo?

https://forums.comodo.com/install-setup-configuration-help-cis/most-effective-way-to-reinstallupdate-cis-to-avoidfix-problems-t58620.0.html

I also had to remove Comodo firewall because of “lost the Start Menu” problem.

As for the removal instructions (before re-installing), they date back in 2010 and the batch file provider displays several not found (and other) errors.

This was the worst experience i had with Comodo firewall from 2005 i’m using it.