How to do an Avast Repair:
XP Users:
- Go to Control Panel > Add/Remove programs > Avast Antivirus.
-
Scroll down and choose Repair function in the pop-up window.
- Reboot.
Vista & Win7 Users:
- Control Panel
- Programs & Features
- Uninstall a Program > Select Avast Antivirus
- Click the Change/Remove button and
scroll down to Repair
- Click Next and follow.
- Reboot.
If this fails to fix your problem, check your firewall:
- Does it allow avastSvc.exe internet access?
- If it does, delete the entry for it and reconnect to the Internet. This should force the firewall to ask permission again.
If this fails to fix the problem, uninstall Avast and do a clean install using the Avast Uninstaller tool.
https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=730&nav=0,2, then reboot.
Let us know if this fixes your problem. Thank you.