Searching on Google and then clicking some items in the horizontal list at the top of the page (Maps/Images/etc) switches to the corresponding search.
Although to me, the "63,100 results" indicates that "All Microsoft" is a search category. The items next to it (Downloads...) use the same font so they look like alternate categories.
Although to me, the "63,100 results" indicates that "All Microsoft" is a search category. The items next to it (Downloads...) use the same font so they look like alternate categories.