Windows 10: What is Rundll32.exe and why has it started running in the background?

Discus and support What is Rundll32.exe and why has it started running in the background? in Windows 10 Support to solve the problem; Hello, From the last few days there is something bizarre happening with my Windows 10 Task Manager Rundll32.exe will start running in the background... Discussion in 'Windows 10 Support' started by BLaZiNgSPEED, Jun 26, 2019.

  1. What is Rundll32.exe and why has it started running in the background?


    Hello,

    From the last few days there is something bizarre happening with my Windows 10 Task Manager Rundll32.exe will start running in the background when I look at my Task Manager and will not disappear.

    I have Windows 10 1903 for the last 1 month and I never noticed this, until a few days ago.
    What is Rundll32.exe and why has it started running in the background? [​IMG]

    I'm completely confused as to what this is. It starts launching approximately after 2 hours and will remain there. This happened somewhere around the 18th of June.

    "C:\Windows\system32\rundll32.exe" -localserver 22d8c27b-47a1-48d1-ad08-7da7abd79617

    Autostart location. HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{89B4C1CD-B018-4511-B0A1-5476DBF70820}

    I tried searching for this but I couldn't find much info. I think I started noticing this after I install Diablo 2 and Splinter Cell 1 on the 18th of June. But I don't know if this is simply a coincidence. But it definitely seems a little bit strange as I have not noticed this behaviour prior to that.

    Can someone tell me what is triggering this to launch after 2 hours?

    :)
     
    BLaZiNgSPEED, Jun 26, 2019
    #1
  2. DaveM121 Win User

    rundll32.exe error in windows 10

    This is caused by an entry in your Startup processes:

    • Press Ctrl + Shift + Esc keys together to open Task Manager
    • On the Startup Tab look for anything relating to this file (rundll32.exe)
    • If you find something related, select it and click 'Disable'

    If you did not find it there:

    • Press Windows + R keys together to open the Run Dialog
    • Type msconfig in the run dialog and hit enter
    • Click on the Services Tab of the resulting dialog
    • Check the box marked 'Hide all Microsoft Services'
    • Look for anything relating to this file (rundll32.exe)
    • If you find it, uncheck it
    • Click Apply and Reboot
     
    DaveM121, Jun 26, 2019
    #2
  3. DaveM121 Win User
    OVER 160 RunDll32.exe in TASK MANAGER !

    Have you got lots of Rundll32.exe or svchost.exe processes running, or both?

    On a normal Windows 10 system, you should not have any Rundll32.exe processes running at all. Check your startup apps the see what is causing this:

    • Press Ctrl + Shift + Esc together to open Task Manager, click on the Startup Tab and see if there are any entries that are starting under rundll32, if there are, disable them
    • Press WIndows + R keys together to open the run dialog, type msconfig and hit enter. Click on the services tab and check the box marked 'Hide all Microsoft Services'. Then scroll through the list of services looking for rundll32 entries, if you find any,
      uncheck them and reboot

    With regards to svchost, i have noticed a huge increase in the number of these processes since the Creators Upgrade - I have 77 currently running on my system. They all are using 0% processor and HDD and on average about 1MB - 2MB, though this number does
    seem excessive . . .
     
    DaveM121, Jun 26, 2019
    #3
  4. What is Rundll32.exe and why has it started running in the background?

    rundll32.exe error in windows 10

    Yes, i tried those troubleshooting steps and I didn't found anything relating to the file (rundll32.exe)
     
    AaronJoshua, Jun 26, 2019
    #4
Thema:

What is Rundll32.exe and why has it started running in the background?

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