I did the repair as you suggested...it still isn't there. Do i have to restart my computer after doing the repair? WHat else should I do?
What do you mean it's not there? it should be there...
Go to Control Panel > Add/Remove programs > avast! antivirus > Remove
Then choose Repair function in the popup window (Repair).
If this does not help, can you uninstall / boot / install / boot again?