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  1.    29 Jun 2017 #1
    Join Date : Jun 2017
    Posts : 9
    Windows 10

    Very high temporary memory usage when doing right-click Properties


    I have an odd problem, and I'm not sure when it started (my system did not used to behave this way). When I do a right click on a file and select properties, it takes about 30 seconds to display the file properties.

    Using the Resource Monitor, I see that during this 30 sec., a dllhost.exe process is launched that gradually ramps up to a working set of over 13 GB of memory, then gradually ramps back down, and then finally, the properties window is displayed.

    This same odd delay also started happening when I launch WinZip... with the WinZip64.exe doing the same sort of ramp-up/ramp-down of the memory working set. Few other application launches create this delay or exhibit these symptoms. Any guesses as to what might be happening here?
      My ComputerSystem Spec
  2.    29 Jun 2017 #2
    Join Date : Jun 2017
    Posts : 124
    Windows 10.0.15063 (Version 1703) Pro 64-bit

    Can you please post a screenshot of the dllhost.exe and it's file properties, the one that absorbs 13 GB of ram?

    dllhost is responsible for Component Object Models and handles application queues and process handles among a few things.

    This sounds like it may be a corrupted system component.
      My ComputerSystem Spec
  3.    29 Jun 2017 #3
    Join Date : Jun 2017
    Posts : 9
    Windows 10
    Thread Starter

    No apparent corruption


    Thanks for your initial assessment, but the sfc /scannow indicates that there are no integrity violations. And the dllhost.exe appears to be properly digitally signed.

    Click image for larger version. 

Name:	dllhost properties.gif 
Views:	5 
Size:	53.5 KB 
ID:	141787
      My ComputerSystem Spec
  4.    29 Jun 2017 #4
    Join Date : Jun 2017
    Posts : 124
    Windows 10.0.15063 (Version 1703) Pro 64-bit

    Quote Originally Posted by bergnerm View Post
    Thanks for your initial assessment, but the sfc /scannow indicates that there are no integrity violations. And the dllhost.exe appears to be properly digitally signed.
    Very well.

    This rules out individual file corruption, can you try to boot into safe mode and see if the right click memory usage overflow occurs when you repeat the same process that causes memory overflow?

    Boot to Advanced Startup Options in Windows 10 Windows 10 Installation Upgrade Tutorials
      My ComputerSystem Spec
  5.    30 Jun 2017 #5
    Join Date : Jun 2017
    Posts : 9
    Windows 10
    Thread Starter

    Same symptoms in safe mode


    I appreciate your help Hydrate.

    I rebooted in safe mode (minimalist), and the same symptoms are present. I also discovered that explorer is exhibiting this same behavior when starting up--but this doesn't happen with every application. For example, Chrome starts up without a hitch.

    Also, if I do a right click and "Properties" on My Computer, it does not exhibit this behavior.

    A very odd problem indeed... anything else I could look at to try to pin down the culprit?

    Tnx,
    Mark
      My ComputerSystem Spec
  6.    30 Jun 2017 #6
    Join Date : Jun 2017
    Posts : 124
    Windows 10.0.15063 (Version 1703) Pro 64-bit

    Quote Originally Posted by bergnerm View Post
    I appreciate your help Hydrate.

    I rebooted in safe mode (minimalist), and the same symptoms are present. I also discovered that explorer is exhibiting this same behavior when starting up--but this doesn't happen with every application. For example, Chrome starts up without a hitch.

    Also, if I do a right click and "Properties" on My Computer, it does not exhibit this behavior.

    A very odd problem indeed... anything else I could look at to try to pin down the culprit?

    Tnx,
    Mark
    I want to run a preliminary scan on your system before we proceed to working on it. Log in to your regular system and :

    Open PowerShell and Run As Admin:

    Code:
    sfc /scannow & Dism /Online /Cleanup-Image /CheckHealth & Dism /Online /Cleanup-Image /ScanHealth & Dism /Online /Cleanup-Image /RestoreHealth
    Now post the results and see if the issue persists in normal mode.
      My ComputerSystem Spec
  7.    30 Jun 2017 #7
    Join Date : Jun 2017
    Posts : 9
    Windows 10
    Thread Starter

    I ran the ps commands... same results. I also did a pretty thorough disk cleaning and tidied up some directories with huge numbers of files in it, thinking that might be a cause.

    Didn't fix it--same results. I'm trying to see if there's any other disk/network activity accompanying the ramping up of RAM usage, but I don't see anything out of the ordinary there... maybe I can focus in on the threads when I open WinZip to see what's going on... I don't know what else to look for. Are there any log files that might tell me what's going on?
      My ComputerSystem Spec
  8.    30 Jun 2017 #8
    Join Date : Jun 2017
    Posts : 9
    Windows 10
    Thread Starter

    I used procexp to try to find out a bit more about what is going on.

    When WinZip is starting up, it looks like the following thread is the one chewing up all of the CPU:

    clr.dll!GetPrivateContextsPerfCounters+ox10af0

    When I'm doing a right-mouse properties activity, it looks like the following thread is the culprit:

    shell32.dll!SHGetItemFromObject+0xae0

    Here's a stack dump from that thread:

    ntdll.dll!RtlGetCurrentServiceSessionId+0x44a3
    ntdll.dll!RtlGetCurrentServiceSessionId+0x3944
    ntdll.dll!RtlGetCurrentServiceSessionId+0x239a
    ntdll.dll!RtlFreeHeap+0x41d
    ntdll.dll!RtlQueryHeapInformation+0x17db
    ntdll.dll!RtlQueryHeapInformation+0x1767
    ntdll.dll!RtlFreeHeap+0x373
    tishell64.dll!DllGetClassObject+0x1a7b4
    tishell64.dll!DllGetClassObject+0xdf8f
    tishell64.dll!ProcessTibUrl+0x22e79
    tishell64.dll!ProcessTibUrl+0x236d9
    tishell64.dll!ProcessTibUrl+0x2364e
    tishell64.dll+0x1cd86
    tishell64.dll+0x1db88
    combase.dll!CoGetClassObject+0x3e44
    combase.dll!CoGetStandardMarshal+0xa6fd
    combase.dll!CoGetClassObject+0x44e1
    combase.dll!CoGetClassObject+0x34c2
    combase.dll!CoGetClassObject+0x3560
    combase.dll!CoGetClassObject+0x36b3
    combase.dll!CoGetClassObject+0x38bb
    combase.dll!CoGetStandardMarshal+0xa73b
    combase.dll!Ordinal153+0x4d2a
    combase.dll!CoGetStandardMarshal+0xa707
    combase.dll!RoActivateInstance+0x884d
    combase.dll!RoActivateInstance+0x90ab
    combase.dll!CoCreateInstance+0xc3
    shell32.dll!SHELL32_LookupBackIconIndex+0x2942
    shell32.dll!SHELL32_IconOverlayManagerInit+0x217f
    shell32.dll!SHELL32_IconOverlayManagerInit+0x1ed0
    shell32.dll!SHELL32_IconOverlayManagerInit+0xe33
    shell32.dll!SHELL32_IconOverlayManagerInit+0x14df
    shell32.dll!SHELL32_IconOverlayManagerInit+0x1001
    shell32.dll!SHELL32_IconOverlayManagerInit+0x88
    windows.storage.dll!NeverProvidedByJunction+0x16a58
    windows.storage.dll!NeverProvidedByJunction+0xe87b
    windows.storage.dll!NeverProvidedByJunction+0x1c6d
    shell32.dll!StrStrW+0x74382
    shell32.dll!SHGetFileInfoW+0x169
    shell32.dll!Ordinal888+0xdec
    shell32.dll!SHOpenPropSheetW+0x47c
    shell32.dll!Ordinal888+0x912
    shell32.dll!Ordinal888+0x522
    shell32.dll!SHGetItemFromObject+0x1a5e
    shell32.dll!SHGetItemFromObject+0x1436
    shell32.dll!SHGetItemFromObject+0xae9
    KERNEL32.DLL!BaseThreadInitThunk+0x14
    ntdll.dll!RtlUserThreadStart+0x21

    This doesn't seem to be going in a direction I have the skills to deal with...
      My ComputerSystem Spec
  9.    30 Jun 2017 #9
    Join Date : Jun 2017
    Posts : 124
    Windows 10.0.15063 (Version 1703) Pro 64-bit

    Quote Originally Posted by bergnerm View Post
    I used procexp to try to find out a bit more about what is going on.

    When WinZip is starting up, it looks like the following thread is the one chewing up all of the CPU:

    clr.dll!GetPrivateContextsPerfCounters+ox10af0
    This seems to be connected to an issue from MP4 thumbnail previews, causing dllhost.exe to amp its memory usage from a loop.

    Please enter PowerShell once more and uninstall this update if it's available - first close all application and save your work, this will restart the box once its complete:

    Code:
    wusa.exe /uninstall /kb:2670838 /quiet /forcerestart
    Test dllhost.exe and see if it still persists.

    If the update is not available, please let me know and we will proceed to another option.
      My ComputerSystem Spec
  10.    01 Jul 2017 #10
    Join Date : Jun 2017
    Posts : 9
    Windows 10
    Thread Starter

    Thanks for the suggestion, Hydrate. I followed your suggestion and still no luck.

    I tried a couple of other things too. I disabled thumbnail view, and the problem persisted. I tried creating a new user account. When I log into the new user account, everything works fine... no problem--so it doesn't seem like it's a system-rooted problem. I looked at some of the log files too, but again, I'm kind of lost in knowing what to look for and how to interpret it.
      My ComputerSystem Spec

 
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