Windows 10: Two RuntimeBroker.exe at startup

Discus and support Two RuntimeBroker.exe at startup in Windows 10 Support to solve the problem; Hi! After 1709 update I found these two instances of RuntimeBroker.exe in my tasklist: [img] and [img] I disabled Cortana in... Discussion in 'Windows 10 Support' started by JoeMcLutz, Nov 16, 2017.

  1. JoeMcLutz Win User

    Two RuntimeBroker.exe at startup


    Hi!
    After 1709 update I found these two instances of RuntimeBroker.exe in my tasklist:


    Two RuntimeBroker.exe at startup [​IMG]


    and


    Two RuntimeBroker.exe at startup [​IMG]



    I disabled Cortana in previous version (and mantained it disabled)... so: why these two programs are running?

    Thanks!
    Joe

    :)
     
    JoeMcLutz, Nov 16, 2017
    #1

  2. Beyond sick of this issue - Event ID 10016 application issue.

    What if there is no :

    HKEY_CLASSES_ROOT\AppID\RuntimeBroker.exe

    Do you mean ?

    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Applications\runtimebroker.exe

    Thanks
     
    SandyWalter, Nov 16, 2017
    #2
  3. lesgrant Win User
    Runtime Broker once again taking up over 1GB of memory?

    Hi

    I cannot agree more, of the hundreds of Microsoft responses I have read over time, only a few have been relevant to the problem - far less useful.

    I think I do understand what is going on however: procmon from sysinternals is your friend here - default the filters and then filter the responses by process name 'RuntimeBroker.exe'.

    ------------------------------------------------------------------------------------

    A snip from a quick looks gives :-

    18:45:51.0066040 RuntimeBroker.exe 60076
    CloseFile O:\Pic archive\Holidays\Greece Evia and islands May 2013
    SUCCESS C:\Windows\System32\RuntimeBroker.exe C:\Windows\System32\RuntimeBroker.exe -Embedding

    18:45:51.0069628 RuntimeBroker.exe 60076 CreateFile
    O:\Pic archive\Holidays\Greece Evia and islands May 2013 SUCCESS
    Desired Access: Read Attributes, Synchronize, Disposition: Open, Options: Synchronous IO Alert, Attributes: n/a, ShareMode: Read, Write, AllocationSize: n/a, OpenResult: Opened
    C:\Windows\System32\RuntimeBroker.exe C:\Windows\System32\RuntimeBroker.exe -Embedding

    18:45:51.0072617 RuntimeBroker.exe 60076 DeviceIoControl
    O:\Pic archive\Holidays\Greece Evia and islands May 2013 INVALID PARAMETER
    Control: IOCTL_MOUNTDEV_QUERY_DEVICE_NAME C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding

    18:45:51.0072970 RuntimeBroker.exe 60076 CloseFile
    O:\Pic archive\Holidays\Greece Evia and islands May 2013 SUCCESS
    C:\Windows\System32\RuntimeBroker.exe C:\Windows\System32\RuntimeBroker.exe -Embedding

    18:45:51.0076644 RuntimeBroker.exe 60076 CreateFile
    O:\Pic archive\Holidays\Greece Evia and islands May 2013 SUCCESS
    Desired Access: Read Attributes, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Open Reparse Point, Attributes: N, ShareMode: Read, Write, AllocationSize: n/a, OpenResult: Opened
    C:\Windows\System32\RuntimeBroker.exe C:\Windows\System32\RuntimeBroker.exe -Embedding

    .

    .

    .

    yada yada yada

    -----------------------------------------------------------------------------------------------------------

    This shows the program hammering my system - particularly my external usb O: drive, most accesses were to it.

    This disk contains approx 2TB of photos and music and it died recently. Taking the box apart I found that the sata/usb controller had fried - literally - melted!!

    The disk itself survived and is now in another box.

    Last but Best!!!!

    The snippet above is culled from a 1 (ONE) SECOND selection of the output from procmon in which RuntimeBroker conducted 4754 file IO operations on my system!! - and this had been going on for hours.

    So a few hours (many - days even) is not going to do the kit much good. IMHO.
     
    lesgrant, Nov 16, 2017
    #3
  4. Two RuntimeBroker.exe at startup

    You know what i never notice two or more instances of RuntimeBroker.exe in Task Manger. The RuntimeBroker.exe is stored in C:\Windows\System32 folder if the RuntimeBroker.exe not running from C:\Windows\System32 folder then you have malware infection.
     
    FreeBooter, Nov 16, 2017
    #4
  5. dmholt57 Win User
    I have four instances running and that is normal on my machine. *Nerd
     
    dmholt57, Nov 16, 2017
    #5
  6. JoeMcLutz Win User
    Every RuntimeBroker.exe runs from C:\Windows\System32\ ... So I guess it's ok. Well, before 1709 I've no RuntimeBroker.exe starting with Windows and staying in.
     
    JoeMcLutz, Apr 5, 2018
    #6
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Two RuntimeBroker.exe at startup

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