I'm not sure I have a problem but I need advise. I am running Vista Home Basic. I am using Avast antivirus. When I go to the security Central and I click on Malware protection I see the following: Spyware and other malware protection - Windows Defender and Avast antivirus both report they are turned on. Are these two in conflict with each other? If so how do I turn off Windows Defender? Thanks Bob