https://www.dotnetzone.gr:443/cs/blogs/birbilis/archive/2008/11/16/make-windows-live-onecare-work-with-ie8-beta-on-vista.aspxIf you haven't heard of Windows Live OneCare online service you should try it. It allows you to scan and clean your system from malicious software, cleanup temporary and other unnecessary files and defragment your disks for faster system response, withelCommunityServer 2.1 SP3 (Build: 20423.1)