Windows 10: Why do I have so many explorer processes running

  1.    14 Aug 2018 #1

    Why do I have so many explorer processes running


    I often have a whole bunch of explorer processes running.
    I expect just one. Or maybe an extra one for each explorer window that I have opened.

    But right now I have none opened ... and yet there are eight explorer processes running.

    What's up with that?
      My ComputerSystem Spec

  2.    15 Aug 2018 #2

    Have you applied something like this? Try to change it to 0.
    Code:
    rem 1 - Launch folder windows in a separate process
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v "SeparateProcess" /t REG_DWORD /d "1" /f
      My ComputerSystem Spec

  3.    15 Aug 2018 #3

    No, here the value is 0.
      My ComputerSystem Spec

  4. TairikuOkami's Avatar
    Posts : 3,328
    10.5 Home 1803 x64
       15 Aug 2018 #4

    Additionally you can also check:
    Code:
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer" /v "DesktopProcess" /t REG_DWORD /d "0" /f
    
    0 - All of the components of Windows Explorer run a single process
    1 - All instances of Windows Explorer run in one process and the Desktop and Taskbar run in a separate process
      My ComputerSystem Spec

  5. Barman58's Avatar
    Posts : 2,764
    Windows 10 Pro x64 1803 - 17134.5 XP/Vista/Win7/Win8.1 in VM for testing
       15 Aug 2018 #5

    going back as far as windows 3x Explorer.exe has always been a major component part of windows, in many ways it was considered to be the Windows executable,

    The load is now being shifted onto svchost.exe which runs many instances concurrently, I have a few things running in background and foreground and have more than 75 instances of svchost.exe running, (svchost.exe used to be shown for groups of processes but due in part due to hiding malware in the process groups it's now shown individually, which allows the user to end a process that is causing problems without crashing other processes )

    The explorer.exe process is still used by some older processes so will show at times even when it's main GUI component is not in use

    The thing to watch with both of these executables is a sudden change in their usage "costs" - if explorer.exe or svchost.exe starts to use a lot more processor cycles or system memory then use something such as Process explorer from Microsoft's Sysinternals suite to see what is actually calling the process giving concern
      My ComputerSystem Spec

  6.    15 Aug 2018 #6

    I just added this registry key, gave it a value of 0, killed all the explorer processes, and restarted explorer.
    I'll see later today whether this change alters the behavior.
    TairikuOkami said: View Post
    Additionally you can also check:
    Code:
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer" /v "DesktopProcess" /t REG_DWORD /d "0" /f
    
    0 - All of the components of Windows Explorer run a single process
    1 - All instances of Windows Explorer run in one process and the Desktop and Taskbar run in a separate process
      My ComputerSystem Spec


 

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