Windows 10: Rundll32 UAC prompts

Discus and support Rundll32 UAC prompts in Windows 10 Ask Insider to solve the problem; I know this issue kinda persistent through ages and windows versions. But has anybody ever found a fix for it apart from repair install? First I had... Discussion in 'Windows 10 Ask Insider' started by /u/Apotrox, Apr 18, 2020.

  1. /U/APOTROX
    /u/Apotrox Win User

    Rundll32 UAC prompts


    I know this issue kinda persistent through ages and windows versions. But has anybody ever found a fix for it apart from repair install? First I had this issue when I want to open my audio devices/sound controls (first on win7 but after a while I got it on win10 too) , now I got it with the application called "Fences" which is on autostart. A few days ago I did everything I could, ranging from sfc to online and offline DISM and lastly repair install, which fixed the issue. That was like 2 days ago. Now I got those UAC prompts again.

    So yeah was there ever a more permanent solution to this?

    submitted by /u/Apotrox
    [link] [comments]

    :)
     
    /u/Apotrox, Apr 18, 2020
    #1
  2. MAJESTIC91
    Majestic91 Win User

    UAC rundll32.exe prompt when opening the settings in the Control panel

    I'm using Win 10 Home x64 with the newest updates. Recently every time I open the mouse, keyboard, sound and few more settings in a control panel I get an annoying UAC prompt that always includes rundll32.exe. I have to confirm every operation connected
    with rundll32.exe. It happens on any Windows account (admin or normal user). For example it looks like this when I try to open the "Playback devices" from the taskbar (it contains this path: "C:\WINDOWS\system32\rundll32.exe" shell32.dll,Control_RunDLL mmsys.cpl,,playback):


    Rundll32 UAC prompts fac3bc4a-6e04-4a92-8bdc-90e40ccf96ee.png


    My UAC level is set to default level and I haven't detected any viruses. There's something interesting about the rundll32.exe file in the system32 folder. It has that little UAC icon (so it opens with the UAC prompt) and every other Win 10 PC I have shows
    the normal icon (there is no UAC prompt when I open it). Even after deleting the file and copying it directly from the another PC (retaining its permissions etc. with the xcopy command), it suddenly has this UAC icon. The same file in the backup WinSxS folder
    can be opened without UAC but when it's copied to the system32 folder, it changes immediately. It looks like rundll32.exe file in system32 folder doesn't have the flag "run as admin without the need for UAC elevation prompt" anymore. How can I solve this problem?
     
    Majestic91, Apr 18, 2020
    #2
  3. ZUBINV3
    ZubinV3 Win User
    Rundll32 UAC Prompt when opening Playback Devices from Volume Control

    • Were there any changes made before experiencing this issue?
    No, as I posted, I fully updated Windows 10 then went to sleep+work, came back now when it boots and when I open system related things, I am prompted with the UAC Y/N

    • What troubleshooting steps have you tried so far?
    None so far because the other person thats experiencing this (also on Answers.Microsoft) never got any reply for his/her problem.

     
    ZubinV3, Apr 18, 2020
    #3
  4. HYEVLTG3
    HyeVltg3 Win User

    Rundll32 UAC prompts

    [W10/1703] Clean Install, Rundll32 UAC Prompt

    I have no idea what happened, left my PC on overnight went to work, and now I'm home and I get a UAC Prompt when I try to R.Click Volume Control for Playback Devices...

    Was there some stealth Windows Update? I looked but nothing new was added to the Updates Installed list.


    Rundll32 UAC prompts wvCoDqj.png
     
    HyeVltg3, Apr 18, 2020
    #4
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Rundll32 UAC prompts

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