Here are some links to tools that I use...Download them, install them, update them, then run them.
Ad-Aware">http://www.lavasoftusa.com/support/download/]Ad-Aware
Somhow I lost the default search engine. When I click "Search" it used to default to MSN. Now nothing comes up and I have to choose from some listing that appears "fishy" - maybe from some trojan or spyware. How do I choose a default search engine and save it?
I have a Dell Dimension 4600, Windows XP.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic