I could recommend some as in Microsoft security essentials I also use maleware bytes and spybot for spyware etc. I would go with the free ones. I wouldn't recommend Norton or mcaffee
I have mentioned this before and it looks very similar to the issues I had with Disco.
Either try installing the game without bloom or when you start up the game and you're in the menu, press shift+F12 (Toggles bloom off or on)
I turn my bloom off when I select characters and it stops it from crashing 100% of the time. Then when I'm on that character ingame, I turn bloom back on sometimes. If that doesn't help, then you need to tell me what the error report says