Could you please tell us which product of Avast you are using? (Free, Pro, AIS)
Did you recently do an upgrade of Avast or a clean install or any other changes to your machine(s)? If you did an upgrade, what was your previous version?
What other security software do you currently have or did you have in the past on this machine including:
- Antivirus (AV)
- Firewall (FW)
- Trial versions of AV, FW and other security programs
- Other security software
- If they were in the past, how did you remove them (the vendor's uninstaller's tool or another way)?
What version of Gameguard do you have?
The more information you can provide us in your post, the easier it is for us to help you. Thank you.