System Guard 2009 is malware.
Please visit our Malware Forum
. Follow as many of the suggestions you can on the page I've linked you to...then post the requested logs to a new topic HERE
for the experts to analyze. One of the specialists will reply to your topic with further instructions to completely clean your system of unwanted visitors.
Be aware that the Malware Forum is a very busy place...at may take a day or two for you the receive help. If you haven't received a reply after three days, post a link to your topic in the Waiting Room
...someone will pick it up quickly.