The Task Manager can be used for several key purposes on a Windows computer:

• It helps identify and diagnose performance issues by showing real-time usage of CPU, memory, disk, and network resources.
• It allows users to monitor what programs and background processes are running and how much system resources they are consuming.
• It enables forcibly ending unresponsive or frozen programs to regain system control.
• It lets users optimize startup programs by disabling unnecessary ones to improve boot time and overall performance.
• It provides the capability to adjust process priorities and troubleshoot application crashes.
• It can be used to detect unusual resource usage that could indicate malware or other software problems.

In summary, Task Manager is used to monitor system resource usage, manage running tasks, troubleshoot issues, and optimize performance.