Computer question: restoring search default

Running Windows XP with Chrome.

I like Google and I’m used to it. Chrome obviously is set up with Google as the default search (if you open up a new tab and type in a term, it’ll send you to a Google page with the results).

But something I’ve downloaded has rest my default. If I type in a term now, the default I get sent to is a Yahoo page. Which I don’t want.

How do I set the search default back to Google?

Wrench icon -> Options -> Basics -> Search

Thank you.