How do I stop “Threat Blocked” popping up every few minutes?
It’s beginning to wear a little thin.
By removing the infection in your computer
start a topic in viruses and worms forum section for help
If you can attach a screenshot to your next post so we have an idea what it is.
If this related to a URL:Mal alert, then this is usually an indication that you have an underlying hidden/unknown piece of malware trying to connect to malicious sites.
This is likely to need further analysis by a malware removal specialist:
Go to this topic http://forum.avast.com/index.php?topic=53253.0 for information on Logs to assist in cleaning malware. Use the information about getting and using the tools and attach the logs start your own new topic in the viruses and worms forum https://forum.avast.com/index.php?board=4.0 and attach your logs there, not in the LOGS topic.