Sometimes your Windows 10 computer slows down to a scan, perhaps accompanied by a whirling fan and programs that barely respond. Often the problem is a program that uses a large part of the processor’s power and leaves little for other programs. How to control it ̵1; and what to do about it.
The best tool for diagnosing a Windows program that can use too much system resources is a built-in tool called Task Manager.
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To open the Task Manager, right-click on the taskbar. Select “Task Manager” in the menu that appears. (You can also press Ctrl + Alt + Delete and select “Task Manager” from the list.)
If you see the simple Task Manager interface, click on “More Information” at the bottom of the window.
Click on the “Processes” tab in the entire Task Manager. You will see a reading of all active processes and the resources they use. Processes are all applications or programs that run on your computer, including important system functions that run silently in the background.
Click on the heading in the “CPU” column to sort the processes that use the most CPU. The process that uses the largest percentage of the CPU will appear at the top of the list.
At this point, if the CPU hogging process is an application, you can try closing it using the usual methods (such as choosing File> Exit from the application menu or right-clicking the application on the taskbar and selecting “Close Window”).
If the application does not respond, you can either wait for a task to complete (if you know the application is active and not just hung) or you can force it to close. To do so, select the application or process name in the Task Manager process list and click “Finish Task.”
Then the process closes. If your machine suddenly becomes responsive again, you know that the CPU hogging application was the problem.
If the process that cuts the CPU is a system process or a process that you do not recognize, you can also try restarting your computer. Immediately afterwards, it may be wise to run a virus scan with Windows Defender if malware is causing the problem.
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If rebooting does not resolve the issue, you can also try updating the program or updating Windows yourself. It can fix a bug in the software that causes the process to hang. Good luck!