How do I find out which processes are using up the most CPU cycles?

Satishchowdaryp June 22, 2014

I have an problem with high CPU usage on my laptop. Can you suggest how to to diagnose this performance issue? I am using an Asus A43s model and am looking for software which can detect the services consuming max CPU cycles and organize the CPU usage.

  1. Dalsan M
    June 22, 2014 at 8:30 pm

    Although I didn't have any success with it, you can try Process Lasso. It supposedly monitors CPU usage and changes the priority of processes to reduce strain, organize usage, and maintain usability of the system.

  2. Hovsep A
    June 22, 2014 at 12:18 pm

    you cant delete process if you do wrong things then you get windows troubles.
    Click the column labeled CPU and Process Explorer will sort the processes by CPU usage.

    sometime high cpu usage is caused by malwares, drivers errors, windows system file corruption.
    How to perform a clean boot in Windows
    you can boot windows to clean mode and check if your cpu usage is going better, then you can enable each process/service one by one and boot each time untill to see which one is causing the problem.

    • Satishchowdaryp
      June 24, 2014 at 1:56 am

      there is lot of usage of cpu than normal. I feel it would be malware. so can I go with the idea clean boot you suggested. will alter my system settings. such as my email configuration and other software's installed on it.

    • Hovsep A
      June 24, 2014 at 8:36 am

      no clean mode does not alter settings, you shouldnt use clean mode permanently but only for investigation. Let us know what you will find out and which process is causing it.

    • Satishchowdaryp
      June 24, 2014 at 2:03 pm

      I don't want to know which process is take more. I feel my system performance gone down and too much heat. I noticed CPU is running at its max 80-90% all the time.Figured it out its affected by some kind of virus. So I am looking for best option to continue. don't want to reformat the system since many settings need to be configured. So looking for alternative ways to do that. So can I carry on with clean boot

    • Hovsep A
      June 24, 2014 at 2:30 pm

      hi, yap sure clean mode can guide you to find out what is causing the high cpu usage, it is not a miracle solution but a path to walk on for investigation. Clean mode wont alter any settings. If you fear that you will get settings problems. you can
      1) create a restore point from windows
      2) Image your windows so you can recover back
      DriveImage XML
      Backup Your PC With Ease For Free Using Easeus Todo Backup [Windows]
      let us know the result of clean mode.

      before this you can also boot to safe mode and scan your pc with malwarebytes antimalware, superantispyware, spybot search and destroy...

  3. Satishchowdaryp
    June 22, 2014 at 11:18 am

    But I am looking for automatic deletion of process that consumes most of cpu performance. Is there any tool which can help to get best performance of my cpu

    • Oron J
      June 23, 2014 at 12:48 pm

      This is a bad idea. Where would you set the threshold? And how can you tell the difference between valid high-utilisation (e.g. running a filter in Photoshop) and an invalid one? If there's a problem, you should get to the bottom of it and fix it, not just kill any process that reaches a certain level of CPU utilisation.

  4. Oron J
    June 22, 2014 at 8:49 am

    At the simplest level, bring up the task Manager (Ctrl+Shit+Escape) and choose to "show processes from all users". Then look at the processes tabs and sort them by CPU (there is a slight difference between versions of Windows, but the idea is the same).

    You can also use the Resource Monitor (better for more in-depth monitoring, and for looking at performance over longer periods of time). There are other tools available, some of them very sophisticated, but these two are usually sufficient.

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