When you install Chrome, mostly the country-specific Google search is set as the default search engine for the Google Chrome Omnibox (a.k.a. the address bar).
Country specific Google search often gives different search results than the global google.com results. Sometimes this is very useful when you are searching for businesses or events in your country. But when you are searching for foreign businesses or for some information that is not related to your country, it can be very annoying as well.
So this Knol gives a simple guide how to make google.com your default search engine.