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  1.    06 Aug 2015 #1
    Join Date : Aug 2015
    Posts : 25
    Windows 10

    CPU fan running at full speed in Windows 10


    Hello, everyone.

    I have posted this in other forums, too, in the hopes of getting some ideas.

    I recently installed Windows 10 on a desktop computer and everything went as smoothly as it could have, with no problems at all. So, motivated by how well everything went with that computer, I decided to upgrade Windows on a laptop as well. The laptop is a Toshiba Satellite L855, with an Intel Core i3-2370M processor.

    The upgrade process on the laptop also completed successfully. Now both computers have Windows 10 and so far it has been running... fine.

    The only unusual thing I've noticed with the laptop is that the CPU fan wants to run at full speed all the time, even though the computer is never used for any "processor-intensive" tasks. The normal activity on it is browsing the web, watching videos, playing music, writing text files and really nothing more than that.

    I immediately found this odd and I have come to the conclusion that something in Windows 10 is responsible because:

    a) This never happened in Windows 7, which was the previous operating system the computer had, and

    b) This doesn't happen when I start the computer and go into a different operating system, namely Ubuntu.

    Well, thank you everybody for reading and please give some advice if you have any. Surely I'm not the only one who has run into this situation.
      My ComputerSystem Spec
  2.    06 Aug 2015 #2
    Join Date : Oct 2014
    Posts : 338
    Win 10 Home Build 1703 64bit

    My laptop fan also seem to run more, not all the time, but more. Have not had time to research.
      My ComputerSystem Spec
  3.    06 Aug 2015 #3
    Join Date : Nov 2013
    Central Florida
    Posts : 340
    Win 7 Pro/32, Win 10 Pro/64/32

    Know that:
    The speed of the CPU fan is controlled not by Windows but by the controller on the motherboard and is based on the temperature of the CPU. So it would be obvious to this old tech, that your Windows 10 is running the CPU more than your previous OS. If you've been Overclocking your CPU, STOP IT!

    Go into the task manager, (CTRL + ALT + DEL) and look at the CPU usage. That might give you a clue as to why the fan is running so much. There are many things that run in the background, like Services you don't need, that can be shut down to minimize CPU usage. That's one of the things I do in the first five minutes, after I install a new OS. Get rid of the redundancy and CRAP running in the background to improve system performance. Then set up Windows to use all the cores in the CPU, and modify the Registry to load the Windows Kernel into RAM memory on Boot-up.
    These are all things I've been doing for about 15 years with several different versions of Windows. Works for me!

    Good Luck!
    TechnoMage
      My ComputerSystem Spec
  4.    06 Aug 2015 #4
    Join Date : Apr 2015
    California
    Posts : 362
    Windows 10 Pro x64

    One thing that seemed to ramp up the CPU use and fan is a process called Runtime Broker. Run the Task Manager and see if that's the case on your systems. With the RTM version of Windows 10, Runtime Broker doesn't seem to misbehave like it did on earlier previews, at least on my computer. But some have reported it is still causing CPU use of 20% to 40% on their systems. If it is a problem, you can disable Runtime Broker in the registry. If anyone needs the detailed instructions for doing this, I will post them here on request.
      My ComputerSystem Spec
  5.    06 Aug 2015 #5
    Join Date : Jun 2015
    Posts : 42
    Windows 10

    Quote Originally Posted by TechnoMage View Post
    Know that:
    The speed of the CPU fan is controlled not by Windows but by the controller on the motherboard and is based on the temperature of the CPU. So it would be obvious to this old tech, that your Windows 10 is running the CPU more than your previous OS. If you've been Overclocking your CPU, STOP IT!

    Go into the task manager, (CTRL + ALT + DEL) and look at the CPU usage. That might give you a clue as to why the fan is running so much. There are many things that run in the background, like Services you don't need, that can be shut down to minimize CPU usage. That's one of the things I do in the first five minutes, after I install a new OS. Get rid of the redundancy and CRAP running in the background to improve system performance. Then set up Windows to use all the cores in the CPU, and modify the Registry to load the Windows Kernel into RAM memory on Boot-up.
    These are all things I've been doing for about 15 years with several different versions of Windows. Works for me!

    Good Luck!
    TechnoMage
    Also, there's now a handy Startup tab in Task Manager, so you can stop apps from running at startup.

    Another potential solution to your fan problem is to stop acting as a P2P server for the rest of the world's Windows 10 installations:


    1. Search for “Check for updates” in the Start menu.
    2. Under “Windows Update” choose “Advanced options.”
    3. Under “Choose how updates are installed” click “Choose how updates are delivered.”
    4. Disable the toggle under “Updated from more than one place.”
      My ComputerSystem Spec
  6.    06 Aug 2015 #6
    Join Date : Nov 2013
    Central Florida
    Posts : 340
    Win 7 Pro/32, Win 10 Pro/64/32

    The pink elephant in the room, for many of us anyway, is 'Cortana'.
    I don't want it, I'll never use it, and I don't want it running in the background, but...
    even after I've turned Cortana OFF, it's still loading into ram memory and taking up 33.1mb of valuable ram.
    It's the second largest user of ram on my PC, With Firefox being #1.
    While the Runtime Broker is only taking up 2.0 mb of ram.

    My next step is to get rid of Cortana, completely, totally and 100%.......GONE!

    Cheers mates!
    TechnoMage
      My ComputerSystem Spec
  7.    06 Aug 2015 #7
    Join Date : Jul 2015
    Posts : 243
    Win 10 Pro 64bit

    Quote Originally Posted by TechnoMage View Post
    The pink elephant in the room, for many of us anyway, is 'Cortana'.
    I don't want it, I'll never use it, and I don't want it running in the background, but...
    even after I've turned Cortana OFF, it's still loading into ram memory and taking up 33.1mb of valuable ram.
    It's the second largest user of ram on my PC, With Firefox being #1.
    While the Runtime Broker is only taking up 2.0 mb of ram.

    My next step is to get rid of Cortana, completely, totally and 100%.......GONE!

    Cheers mates!
    TechnoMage
    In task manager right-click Cortana and choose 'Open file location' to find out where Cortana's folder is. Rename this folder (add .bak to the name), it will fail and show a 'try again' dialogue, end the Cortana process and quickly press the try again button before it starts up. No more Cortana.

    For Firefox get the Memory Fox add on, you have to have it's green button showing but besides that it owns for freeing Firefox memory, usually takes my Firefox memory down to 3MB when idle...
      My ComputerSystem Spec
  8.    06 Aug 2015 #8
    Join Date : Jul 2015
    Posts : 223
    Windows 10 Pro

    This I want to know more about.
    Quote Originally Posted by TechnoMage View Post

    and modify the Registry to load the Windows Kernel into RAM memory on Boot-up.
    TechnoMage
      My ComputerSystem Spec
  9.    06 Aug 2015 #9
    Join Date : Aug 2015
    Posts : 142
    dual boot win10/win7

    One thing that might help is adjusting how Windows 10 handles updates. Go to settings/update and recovery. Select "advanced options" Select "choose how updates are delivered." From here you can toggle the slider off, or select the local network only button.
      My ComputerSystem Spec
  10.    06 Aug 2015 #10
    Join Date : Nov 2013
    Central Florida
    Posts : 340
    Win 7 Pro/32, Win 10 Pro/64/32

    Hee Hee!
    I tried that, but at 72 I'm not fast enough to kill Cortana before she re-runs herself..... so.....
    I Opened up that "Open File Location" and found the two files (actually folders) that Start with....
    "Microsoft.Windows.Cortana" and I opened the first folder, Took Ownership of it and deleted it.
    NO Problemo!

    Then the second folder has all the .dll files in it. So I just renamed every .dll file to .ddd.
    Rebooted the PC and VOILA!...... Cortana was no longer running.

    I'm pretty sure some scripting Guru will write a VBScript to do what I've just suggested.
    Then we can just run the one little script, and NO MORE CORTANA.

    With some experimentation, it might be found that just renaming one or two of the .dll files would do the trick.
    That might even be done with a batch file.

    Pause:

    Well, I just fired up Laptop #3, and sure nuff, Cortana was running, as seen in Task Manager.
    So I Right Clicked on Cortana and "Open File Location". Then I changed just one .dll file.....
    "Cortana Core.dll" to "Cortana Core.ddd", rebooted the PC and Cortana was NOT RUNNING any longer.

    Success at last!

    Now it's off to bed! Y'all have a great TGIF day.

    TechnoMage
      My ComputerSystem Spec

 
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