i just read the blog on
http://blogs.technet.com/antimalware/ and found
something very interesting:
"As part of this engineering milestone, we've also started to prime the
Windows Update software distribution channels with signatures for Windows
Defender. This is important so the signatures are available when we ship the
next beta. So, for enterprise and corporate customers that are using Windows
Server Update Services, you will start seeing "Windows Defender" in the
product category dialog as well as a new classification called "Definition
Updates"
does that mean that I need to have Administrative privelege to update
definition signatures. i don't get it at all, as far as i know limited
account can't use Window Update. I wish that Window Defender support LIMITED
ACCOUNT on WINDOW XP. hopefully they didn't forget LIMITED ACCOUNT features