Can't Enable Firewall

This morning I updated the program version and virus definitions at the prompting of the program and now the firewall won’t enable. I think I might have had Windows Update running in the background simultaneously…not sure if this may have created a conflict/corruption. How can I get the firewall enabled again?

Repair Avast:

  1. Control Panel → Add/Remove programs → Avast
  2. Click on ‘Repair’.
  3. Follow instructions.
  4. Reboot.

It worked, thank you. BTW, after the repair was complete I received notice that Microsoft Security Essentials is an incompatible program that may interfere with Avast. Does it indeed interfere and do I lose any protection disabling it? Thanks again!

  1. You’re welcome.
  2. Yes, get rid of/disable MSE…!!