Windows 10: Windows Host Process (Rundll32) keeps asking to run

Discus and support Windows Host Process (Rundll32) keeps asking to run in Windows 10 Support to solve the problem; Hi all, I'm using a pretty new laptop and several times, a User Account Control popup has come up asking if I want to allow an app to make changes to... Discussion in 'Windows 10 Support' started by Alicat22, Mar 16, 2019.

  1. Alicat22 Win User

    Windows Host Process (Rundll32) keeps asking to run


    Hi all,

    I'm using a pretty new laptop and several times, a User Account Control popup has come up asking if I want to allow an app to make changes to my device. The app is called Windows host process (Rundll32). I am not doing anything that I would expect to trigger such a request. The last time it happened (three times in a row, and I had to shut my computer down because it kept popping up), the only thing I had open was my computer settings, as I had turned my mobile hotspot on. I wasn't doing anything on my computer at the time; I was using the wifi connection to play a game on my phone.

    Since I don't trust this program popping up out of nowhere asking to make changes to my computer, I always decline the request. I've scanned my computer with both Avast and Malwarebytes. Neither service found anything wrong.

    Why does this notification keep popping up, and what can I do about it?

    Thanks in advance.

    :)
     
    Alicat22, Mar 16, 2019
    #1
  2. DaveM121 Win User

    Windows host process rundll32 running 19 instances

    That is certainly not normal, you will need to find out what processes are running on rundll32.exe

    Rundll32 is just a host for other processes to run, to find out exactly what is running on this process, Click HERE to download the free ProcessExplorer
    from TechNet

    The app will download in a zip file (approx 1.84mb), unzip it and run the appropriate version (32bit or 64bit) for your system by right clicking the exe and choosing 'Run as Administrator'

    You’ll want to choose File - Show Details for All Processes to make sure that you’re seeing everything

    Hover over the rundll32.exe in the list, you’ll see a tooltip with the details of what it actually is:


    Windows Host Process (Rundll32) keeps asking to run 46b7762b-f570-4f67-91d6-cdbc93658a92.png


    Alternatively you can right-click, choose Properties

    Then take a look at the Image tab to see the full pathname that is being launched

    You can see the Parent process, which in this case is the Windows shell (explorer.exe), indicating that it was likely launched from a shortcut or startup item.


    Windows Host Process (Rundll32) keeps asking to run 5cbd5aa3-2611-42a6-887d-265e98758083.png


    In general, processes running on rundll32.exe can be stopped from running when Windows starts up as follows:

    • Press Windows + R keys together to open the run dialog
    • Type msconfig and hit enter
    • On the Startup Tab will be a list of processes that start with Windows
    • Check the box marked Hide all Microsoft Services'
    • Look down through the remaining list for items containing 'rundll32'
    • If you find any erroneous entries, uncheck them . . .
    • BE CAREFUL not to uncheck items like nVidia items which sometimes use rundll32


    Windows Host Process (Rundll32) keeps asking to run a2575ab0-bcc0-4c79-abbd-5f502fa66ace.jpg
     
    DaveM121, Mar 16, 2019
    #2
  3. Windows host process (Rundll32) has stopped working

    Ran all of the above malware removal tools for Windows 10. "Windows host process (Rundll32) has stopped working" error message only occurs when I try to view jpegs in Windows Photo Viewer. How can I restore my ability to view jpegs?
     
    bayareauser, Mar 16, 2019
    #3
  4. AndyH46 Win User

    Windows Host Process (Rundll32) keeps asking to run

    Windows Host Process (Rundll32) - Multiple versions

    Running Windows 10 and experienced a slow down in processing tasks. I checked in File Manager and found I have 4 versions of Windows Host Process (Rundll32) active. 3 of them show memory and CPU usage and 1 seems to be static. Checked the library paths
    and all 4 reside in System 32 library. Do I need 4 versions or can I stop 3 of them.
     
    AndyH46, Mar 16, 2019
    #4
Thema:

Windows Host Process (Rundll32) keeps asking to run

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