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Thread: Rundll32.exe causes computer to hang at shut-down

  1. #1
    Join Date
    Jul 2006
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    286

    Rundll32.exe causes computer to hang at shut-down

    I am working with a computer that consistently hangs on shutdown but only if the computer has been on all day. It will give me an error that says "rundll32.exe is not responding". I got a command line tool to show me what process is being used, which was WMIC /OUTPUT:C:\ProcessList.txt PROCESS get Caption,Commandline,Processid. But once the rundll32.exe error comes, the pc is already in shutdown mode and I cannot access a command line? Can anyone tell me a way to find out what is causing this hang? Thanks.

  2. #2
    Join Date
    Sep 2005
    Posts
    1,306

    RE: Rundll32.exe causes computer to hang at shut-down

    It can be a legitimate Process that is located here - C:\Windows\System32 and also it can be a Trojan Backdoor. You have to ensure that your system is clean by scanning with up to date security software.

  3. #3
    Join Date
    Jul 2006
    Posts
    286

    RE: Rundll32.exe causes computer to hang at shut-down

    Thanks but I dont know on what process it is hanging on, once the error pops up, then the computer is already in the process of shutting down and I cannot get to task manager, a command line, or anything else. I have searched the computer for rundll32.exe and it appears only in the c:\windows\system32 folder.

  4. #4
    Join Date
    Nov 2005
    Posts
    2,485

    RE: Rundll32.exe causes computer to hang at shut-down

    Are you able to see any error messages in the event viewer? Which method of troubleshooting you are performing for us to look further and avoid repeating what you should do to solve this case?

  5. #5
    Join Date
    Sep 2005
    Posts
    226
    Have you tried to start with a Clean boot on your computer. It might be possible that Rundll32.exe becomes corrupt on the hard drive and need to be replaced, also try to make sure te Ram pass the test on this machine to get rid of the Ram from our scenario.

    Process Monitor
    http://technet.microsoft.com/en-us/s.../bb896645.aspx

    DiskMon
    http://technet.microsoft.com/en-us/s.../bb896646.aspx

    FileMon
    http://technet.microsoft.com/en-us/s.../bb896642.aspx

    PsTools
    http://technet.microsoft.com/en-us/s.../bb896649.aspx

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