System & Monitor : Monitor : Event Viewer
Event Viewer
Audit and System logs are an important part of any secure system that provides a comprehensive view into the current and past state of almost any type of complex system, and they need to be carefully designed in order to give a faithful representation of system activity.
They can identify what action was taken by whom and when. The existence of such logs can be used to enforce correct user behavior, by holding users accountable for their actions as recorded in the audit log. They are the simplest, yet also one of the most effective forms of tracking temporal information. The idea is that any time something significant happens you write some record indicating what happened and when it happened.