Suggest you try this manual uninstall
I encountered a problem trying to remove Avira from my computer.. I have Windows XP. My computer was infected. I went to Avira and tried to reactive it but it would not.. So I downloaded another antivirus software and tried to delete Avira.. I cant remove Avira because I keep getting a message about the cclib.dll not being found. Can someone help me figure out what the problem and how to fix it.