Yes, on installing MSE (abandoning AVG after 3-4 years) I did a quick scan
as recommended, but soon after (next night?) I scanned a few Tb of stuff and
it located a couple of things. Since then it has been unobtrusive and I
assume is keeping me safe. I'm happy with it. 
Noonie's explanation sounds reasonable. 
________________________________
Ian Thomas
Victoria Park, Western Australia

-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of noonie
Sent: Tuesday, July 12, 2011 12:50 PM
To: ozDotNet
Subject: Re: [OT] MS security essentials

Bec,

It could be a timing issue. When you got the files, in the first
place, the threat was not known to your AV but later updates added the
signature to the scanner. If you haven't touched the files in the
intervening period then your AV wouldn't necessarily be prompted to
scan them again.

>From memory, Microsoft Security Essentials defaults to a Quick Scan,
for your daily or weekly scan, and this type of scan "...scans the
folders where malware is most commonly found." I suspect that the
Desktop is one of those folders and moving the files prompted MSE to
have another look at them.

-- 
Regards,
noonie


On 12 July 2011 13:49, Bec Carter <[email protected]> wrote:
> So I installed this a few months ago on Vista and everything looked
> fine. Then over the weekend I moved some folders from
> C:\Users\Bec\Folder1 and onto my desktop and suddenly ms security
> essentials found all these infected files. The files were things I
> didn't need anyway so I just had it kill them.
> Can anyone explain why this would happen? Why would security
> essentials not detect problem in the old location?
>
> Cheers
> Bec
>

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