If you have ever opened Task Manager to see CPU consumption, RAM or which applications are taking up a lot of system resources, but when you first opened the CPU suddenly increased to 100% and then decreased. You may be wondering why mysterious CPU spikes in system resource usage occur. After all, Task Manager is a lightweight program you can run with little impact on system performance on most computers. In this post, AnonyViet will work with you to clarify this issue.
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CPU usage suddenly increased by 100% when opening Task Manager
The root of the problem lies in a fundamental misunderstanding of how Task Manager actually works.
When you launch Task Manager, it immediately starts collecting information about which processes are running, which processes are taking up the most system resources, and what resources the process is using. While Task Manager is collecting this information, the spike in CPU usage you see is Task Manager compiling that data. Once completed, Task Manager displays all that data to you in table format.
The confusion is even higher when you are monitoring CPU usage for different processes. The solution is to first open Task Manager so that it can start monitoring CPU usage as soon as it starts running, after about a few seconds of waiting for the CPU to reduce to a balanced level for a long time, you can accurately assess the computer resources being used.
That said, you can also choose to slow down Task Manager update speed to bypass this annoying issue. Since the update will be slow, the spike in CPU usage will come later.
How to change Task Manager’s information update speed
Task Manager lists processes along with CPU, RAM, Disk, Network usage. It also lists performance, application history, windows startup mode, etc. While there are many, have you ever wondered how often Task Manager is updated? Sometimes you may want to update faster and sometimes slower than usual to reduce the load on the CPU. AnonyViet will show you how you can change the Windows Task Manager update speed.
To change Task Manager’s data update speed in Windows 10:
- Open Task Manager with Ctrl + Shift + Esc.
- Open the Process tab
- Click the View menu item
- Select Update Speed
- Choose between High, Low, Normal and Paused
- High: This option will update the percentage every half a second. You can use it for resource-hungry processes like gaming and video rendering.
- Normal: Here, the update rate is once per second. This is the default setting.
- Low: If you need to keep track of a percentage, but it changes too often, you can slow it down using this. It will update every four seconds. This gives you enough time if you want to take screenshots with a slower update.
- Paused: This will freeze everything in the list until you change it to other options. It is very useful when you need to take screenshots.
Therefore, if you do not want the CPU to increase suddenly, you can choose Low or Paused.
Task Manager provides a quick and easy way to see exactly what programs are running on your computer and how much CPU and RAM they are currently using. However, if you don’t like Task Manager, you can check out some Task Manager replacement tools that can help you monitor system resource usage such as:
- Process Explorer – I chose this because of it Kill Viruses and genuine Microsoft.
- Task Manager Deluxe
- Customized Task Manager.
- WinUtilities Process Security
- TaskInfo
- Daphne
- Microsoft Sysinternals Process Explorer
- System Explorer
- Glarysoft Security Process Explorer
- Process Hacker
- Starter Startup Manager
- AnVir Task Manager Free
AnonyViet hopes this post can explain why CPU suddenly spikes when Task Manager is launched.
Frequently asked questions
Why does CPU suddenly increase to 100% when I open Task Manager?
When you open Task Manager, it starts collecting data about running processes and system resources. Collecting and processing this data causes a temporary spike in CPU. Once completed, CPU usage will decrease.
How to minimize CPU spikes when opening Task Manager?
You can change Task Manager’s data update rate. In the “View” tab, select “Update Speed” and select “Low” or “Paused” to reduce CPU load.
Are there any other alternatives to Task Manager?
There are many Task Manager replacement tools, such as Process Explorer (from Microsoft), Task Manager Deluxe, or other software listed in the article, that allow you to monitor system resource usage more effectively.
