Welcome to the forum Jack421.
I need to get more information from you so that I can help you:
1. Can you tell me what
version of Avast you have and what Avast
product you have?
2. Have you had Avast on your system? Was this an
upgrade or a
clean install? Is this a new problem? If so, can you identify what may have prompted it?
3. What is your OS, RAM, and 32 or 64-bit?
4. How do you connect to the Internet? Thank you.