The Seven Years' (in America, French and Indian) War was actually an imperialist war in which Britain, France, and others competed for dominance in Europe, America, and Asia as well. The English colonists were, in some sense, empowered by this conflict, playing a decisive role in expelling the French from North America. The result was a huge increase in British power with the takeover of Canada and the undisputed (from a European standpoint) British control of all the territory from the Atlantic coast to the Mississippi river.
The divergence between the British perspective on this outcome and that of the colonists was one of the causes of the War of Independence twelve years later. The British put forth the idea that the war had been fought to protect the colonists and therefore that the colonists "owed them." This was then used to rationalize the taxation schemes that ended up causing massive resentment in the colonies.
The colonists, more realistically, knew that the war was another in the endless stream of conflicts between the European powers who were fighting to settle their own differences, regardless of the welfare of their colonial subjects. Despite the more expected possibility that the colonists would be grateful to the mother country for protecting them and making their lives safer against encroachment from the French and their Native American allies, the war had the opposite effect of antagonizing the colonists.
This was augmented by the British response to Pontiac's War, the Native American uprising occurring in the year the French and Indian War ended. The British, in order to placate the Ottowa and other American Indian Nations in the Great Lakes region (and also, partly out of a genuine sense of fair play toward the indigenous people) passed the Proclamation of 1763, prohibiting white settlement west of the Alleghenies.
This unfortunately backfired, given that the colonists continued to move west through the mountain passes which the British, with their limited forts and outposts, could not police effectively. It was another factor that would contribute to war in 1775 and the secession of the colonies from Britain in 1776, resulting in the creation of the United States.