Windows Task Manager is a built-in utility in Windows operating systems that can help you monitor your computer’s performance. It allows you to view real-time information about your computer’s CPU, memory, disk usage, and network activity, as well as manage running processes and applications. Here’s how to use Windows Task Manager to monitor your PC’s performance:

1. Open Task Manager: Press the “Ctrl+Shift+Esc” keys simultaneously or “Ctrl+Alt+Del” keys and then select “Task Manager” from the options.
2. Observe the Overview tab: The first tab is “Overview”, where you can see the real-time usage of CPU, memory, disk, and network.
3. Check the Processes tab: The “Processes” tab shows you the list of all the applications and processes currently running on your computer. It also displays the CPU, Memory, and Disk usage of each process. You can sort the list by clicking on the column headers.
4. Use the Performance tab: The “Performance” tab displays detailed information about your computer’s CPU, memory, disk, and network usage. You can see the usage history of each resource over time and switch between different charts, including CPU, memory, disk, and network.
5. Check the App history tab: The “App history” tab displays the resource usage of all the applications that you’ve used in the last month. You can see the CPU time, network usage, and metered network usage of each app.
6. Use the Startup tab: The “Startup” tab shows you the list of all the programs that are set to run automatically when you start your computer. You can enable or disable any program from this tab.
7. Use the Users tab: The “Users” tab shows you the list of all the users currently logged in to your computer. You can see the resource usage of each user, and you can also disconnect any user from this tab.

In conclusion, Windows Task Manager is an essential tool to monitor your PC’s performance. By keeping an eye on the resource usage, you can identify any performance issues and troubleshoot them accordingly.