On the left, under "Add-on Types," click Search Providers. On the right, click Google Search. At the bottom, click Set as default. Internet Explorer 10. Open Internet Explorer. In the top right corner of the page, click the gear icon. Click Manage add-ons. On the left side of the page, click Search Providers. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.