Fix for 100% CPU usage while notebook is using battery power

For quite a couple of days one of my friends had a very strange issue. When he was using his notebook in battery mode the notebook performance was very slow and CPU usage was continuously showing as 100%. As CPU was always busy at 100% every operation in the notebook was taking a hell lot of time. The friend of mine being a  novice computer user, he did not have any clue about what was going on. So I came as a rescue. With my analysis of his notebook I finally could find out that the issue was happening only when the notebook was using the battery power.

So i immediately found out that this has something to do with the Power Options and fiddle with the Power Options setting to finally fix the issue. So if you are experiencing a similar issue of 100% CPU usage by your Notebook, follow the steps below:

– Click on Start and Type Power Options in the search box in your Windows Vista/Windows 7 based PC.

– Hit enter to Open Power Options window.

– In Power Option, click on Chnage Plan setting for the current power plan you are using.

– Click on Change Advanced Power settings in the next window.

– A new window will open up.

– In this window, click on + sign near Processor Power management.

– Click on + sign near system cooling policy.

– Make sure the on battery settings for system cooling policy is set as Active. If it is passive, make it Active.

– Click on Apply and OK.


Skill level: Beginner


Ajay is the editor and webmaster of Techie Zone . He is also a Wordpress expert and provides Wordpress consultancy and web services. Recently he has launched his maiden start-up Qlogix Solutions. You can follow him in twitter @ajaykumarmeher

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7 Responses to “Fix for 100% CPU usage while notebook is using battery power”

  1. Puneet says:

    Thanks For The Fix, It was so helpful to me.

  2. Syed Nabil says:

    realy helpful.thanks

  3. Martin says:

    Thanks man… this really worked for me !

  4. qubi says:

    Thanks For The Fix, It was absolutely helpful!

  5. Rajesh says:

    Thank you for the tip, worked for me.

  6. akc says:

    thnx bro. never noticed the advanced settings thing

  7. Santhosh says:

    Awesome finding…the fix solution works…thanks for the suggestion.

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