Hmm - something is amiss, but perhaps not what you think:
Windows Live OneCare, in current versions, supplants Windows Defender, and
disables it. OneCare contains the same protection ability, and this is
intentional. What I don't understand is that you are seeing this icon
change--but perhaps you are starting Defender manually?
See this KB article for authoritative information:
http://support.microsoft.com/kb/932902
--
"Pauly" <(E-Mail Removed)> wrote in message
news:A0FC2037-9447-4766-A738-(E-Mail Removed)...
>
>
> "Bill Sanderson" wrote:
>
>> What happens? Do you get an error message? Is Windows Live OneCare
>> installed?
>>
>> What antivirus is installed? Is it up to date, and have you done a
>> complete
>> scan of the machine recently?
>
> Pauly: The check mark on the Defender icon (in the Task Tray) turns
> yellow.
> I click the icon and a pop-up message warns me that Defender is closed and
> turned off, and that my computer is at risk. The message contains a
> linked
> statement, "open and turn on Defender." When I click on the link,
> Defender
> is opened and turned on. Yes, Live OneCare is installed.
>
> The installed antivirus program is Windows Live OneCare and is up to date
> and do a "Full System Scan" daily.
>
>>
>
>>
>>
>>
>> "Pauly" <Pauly @discussions.microsoft.com> wrote in message
>> news:1AD40A5C-F862-45C6-B8E1-(E-Mail Removed)...
>> > My Windows Defender is constantly closing and turning-off. Anyone Know
>> > what's causing this problem and how to correct it?
>>
>>
>>