Selective Startup

This is really a annoyance rather than complaint. I have Windows 8.1 Pro 64bit running. I installed Comodo AV only, no Geekbuddy, Privdog, or Browser. The problem is that when I installed it, it causes my computer to from Normal Startup to Selective Startup. The only difference I can see is that 2 Comodo Services are added. I verified this by uninstalling and reinstalling several times. When Comodo is uninstalled computer boots in Normal Startup. Install Comodo AV after reboot computer is in selective startup, 2 Comodo services are added in MSConfig under services. Nothing else has changed except for the Comodo startup entry is added. Just curious if anyone else has noticed this, and if so can shed some light on it. Thanks!