Task Manager is a built-in Windows utility that allows users to view and manage the programs, processes, and services currently running on their computer. It provides real-time information about system performance, CPU and memory usage, and network activity. Users can use Task Manager to end unresponsive applications, monitor resource consumption, and troubleshoot issues. In cybersecurity, malware may attempt to disable Task Manager to avoid detection and removal, making it harder for users to identify suspicious activity.