Is it just the firewall you are using? ... not Comodo Internet Security (Firewall, Defense+ and Comodo AV)
If so, then an update in March put a second stsrt-up key into your system for CIS which causes the splash screen to come up when you start.
You can disable it using Ccleaner start-up module (look for CIS) or msconfig where it appears as the second cfp.exe
( Recommend Ccleaner for this. It has more info for your guidance)