Windows Scheduler is a built-in tool in the Windows operating system that allows users to automate tasks on their computers. It enables users to schedule programs or scripts to run at specific times or in response to certain events, such as system startup or user logon. This helps streamline repetitive tasks, improving efficiency and productivity. Users can access Windows Scheduler through the Control Panel or by searching for "Task Scheduler" in the Start menu. The interface allows for easy creation, modification, and management of scheduled tasks, providing options for setting triggers, conditions, and actions to customize how and when tasks are executed.