Why is the interface coming on when i start up the PC, and how do I keep it off ?? I feel like am using Avira.
It shouldn’t come on by default. Somewhere in your system is a shortcut/startup (other than the default /nogui one)/run command/registry entry, etc. that is opening it.
Try a registry search for avastUI.exe and report the findings, key and value.
if anyone else can give me a heads up on this. its not hurting anything buts its an annoyance.If any of you out there is good with the registry.
Please do as DavidR requested. He knows what he’s talking about. 
Tried everything,even tried the removal tool and reinstalling still the same thing. I guess I just don’t know enough about PCs to grasp what is the cause.70 hard years and the brain says no you dont. Unless someone can walk me through it,
Here is the only thing I can find.
Product:
avast! Antivirus
Company:
AVAST Software
Description:
avast! Antivirus
Version:
7.0.1474.765
MD5:
083649EF692A066880C9326020915AFE
SHA1:
04E91FEA01FAACBC3689E77392AF3F56ECA02325
SHA256:
570DBF28F6D77890476F7B6A9C57F77DCC3C51038A1780540032B5FD9CF72190
Size:
4297136
Directory:
%PROGFILES64%\AVAST Software\Avast\AvastUI.exe
Operating System:
Windows Vista
Discovered:
Oct 31 2012
Occurence:
High oc2
Digital Signature:
AVAST Software
That isn’t in the registry, that is just the file properties from the actual in the avast folder.
For this to run/open, there has to be a command to run it, there should be one in the msconfig startup tab entries created by avast but that has /nogui after it, meaning it doesn’t open the window.
The only other area could be in the registry, so you have to search for the avastUI.exe value in the registry (I can’t do that for you).
Solved the problem by deleting all the avast files one at a time until I found the one I wanted reinstaled Avast.