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Resolved windows 7 shutting down

Discussion in 'Windows 7' started by chuckk2, 2017/02/09.

  1. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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    I have a dell OptiPlex 790 windows 7 pro 64 bit sp1 that is 3yrs 3mon old that just shuts itself off "windows is shutting down" no error, no beeps, no number codes.ok, so I switched hard drives and memory from a second dell 790 and I still have the first machine shutting down with my hard drive and memory. and this is in 2 different locations. list is what I have done.

    ran dell diag full twice with no errors
    replaced memory again no fix
    replaced power supply no fix
    replaced motherboard /w updated bios no fix
    temps are all ok
    replaced data cables
    diff. keyboard & mouse
    diff monitor
    power range is also good (HWMONITOR)

    watched it happen this morning and tried to get viewer's error and one was scregsetvalueexw
    would this error cause the machine to shut down? this has me stumped!

    thanks
    chuck
     
  2. 2017/02/09
    Steve R Jones

    Steve R Jones SuperGeek Staff

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    Does it shut down while being used or while sitting idle?
     

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  4. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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    both and this last time stayed on almost 4 days, time before that 30 hrs
     
  5. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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    and it just says "windows is shutting down" no errors at all and will try to get the new viewer errors next time.
     
  6. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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    steve

    I just noticed something, when I go into device manager and click on details under generic USB hub properties it just keeps flashing and can't do anything but close it and only does under details
     
  7. 2017/02/09
    TonyT

    TonyT SuperGeek Staff

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    First thing I'd do is take it outside, remove the side cover and blow out the dust using my air compressor. Hold the fan blades fixed while blowing.
     
  8. 2017/02/09
    retiredlearner

    retiredlearner SuperGeek WindowsBBS Team Member

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  9. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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    that was done first
     
  10. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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  11. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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    that setting is already turned off though
     
  12. 2017/02/09
    chuckk2

    chuckk2 New Member Thread Starter

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    I have no more ideas, was hoping someone else did that knew more about windows programming, I am not a programmer
     
  13. 2017/02/09
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Hi chuckk2, Welcome to Windowsbbs! :)

    Does the computer shut down while the system is running in Safe Mode? Have you updated all of the computers drivers? Are you overclocking any components?

    Also please enter your System Details. It helps us in answering your questions.
     
  14. 2017/02/10
    TonyT

    TonyT SuperGeek Staff

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    Try uninstalling that generic USB hub in Device Manager, reboot. Its driver is probably corrupted and that will cause a fresh driver copy to be auto reinstalled.
     
  15. 2017/02/10
    chuckk2

    chuckk2 New Member Thread Starter

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    will try the uninstall usb hub also just shut down at 3:09 today about 1/2hr ago and these are the three errors before shutdown


    first error--viewer admin
    5 user registry handles leaked from \Registry\User\S-1-5-21-1010096444-207628630-407752848-1006: Process 168 (\Device\HarddiskVolume1\Windows\System32\lsass.exe) has opened key \REGISTRY\USER\S-1-5-21-1010096444-207628630-407752848-1006 Process 168 (\Device\HarddiskVolume1\Windows\System32\lsass.exe) has opened key \REGISTRY\USER\S-1-5-21-1010096444-207628630-407752848-1006 Process 168 (\Device\HarddiskVolume1\Windows\System32\lsass.exe) has opened key \REGISTRY\USER\S-1-5-21-1010096444-207628630-407752848-1006\Software\Microsoft\SystemCertificates\My Process 168 (\Device\HarddiskVolume1\Windows\System32\lsass.exe) has opened key \REGISTRY\USER\S-1-5-21-1010096444-207628630-407752848-1006\Software\Microsoft\SystemCertificates\CA Process 168 (\Device\HarddiskVolume1\Windows\System32\lsass.exe) has opened key \REGISTRY\USER\S-1-5-21-1010096444-207628630-407752848-1006\Software\Microsoft\SystemCertificates\Disallowed
    second error::
    param1 ScRegSetValueExW
    param2 FailureActions
    param3 %%5
    third error::
    WLAN autoconfig service has successfully stopped
    i get this error under system in viewer::
    - INFO_PNP_STATE
    InstallSubsystemState false

    CachingSubsystemState false[/QUOTE]
    also the info that was asked for

    i5-2400@3.1GHz
    intel HD graphics
    hd--st250 Seagate
    nic--intel 8257lm gig
    realtek HD audio
    win 7 pro 64 bit
    memory pc3 8 gig kingston

    all onboard
     
  16. 2017/02/10
    chuckk2

    chuckk2 New Member Thread Starter

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    folks

    I looked under system in viewer also right before shutdown occurred and seen this error and thought you could tell me what it means

    "he kernel power manager has initiated a shutdown transition"

    a lot of stopped states 8-10 right before the above error

    I do thank all of you for your help
    thanks much
    chuck
     
  17. 2017/02/11
    chuckk2

    chuckk2 New Member Thread Starter

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    no, I am not overclocking and yes it still does it in safe mode
     
  18. 2017/02/11
    TonyT

    TonyT SuperGeek Staff

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    I'm thinking there's a short on the motherboard. Those registry leak errors are normal behavior for Windows when the system is headed toward a shutdown and applications close and leave some files or functions resident in memory. Windows must then force the clearing of memory if it can. It may not. Since these errors come after shutdown is initiated I consider them non-significant.

    Usual causes of a problem like this are: (in no order)
    1. dust build up caused a section of motherboard to heat up and short.
    2. failing component on motherboard.
    3. CPU heatsink not seated properly or it may need more goop.

    Example: (in one case it was a bad power button)
    Dell Optiplex 790- Random Shutdowns - General Hardware - Desktop - Dell Community
     
    Last edited: 2017/02/11
  19. 2017/02/11
    chuckk2

    chuckk2 New Member Thread Starter

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    board has been replaced, too much past caused reverse effect and machine was cleaned before new board put in
     
  20. 2017/02/11
    chuckk2

    chuckk2 New Member Thread Starter

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    Tony

    thank you for responding but i'm @ a loss here, I have never been unable to find problem after 28 yrs of repairing but this has me stumped since no errors @ all that apply to shutdown
     
  21. 2017/02/11
    TonyT

    TonyT SuperGeek Staff

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    And you won't find any errors that relate to shutdown because shutdown is not the problem. There's an unknown problem that causes a shutdown. And in my experience this type of problem is hardware related.

    To trace down hardware that causes the problem I would remove all internal components that are not needed to use the computer, e.g. secondary hard drive, cd/dvd, graphics card (only if motherboard has onboard video to use), other pci and pcie cards. Strip it down to only what's needed, e.g. boot drive and video, keyboard & mouse. If get joy, add components one by one until the problem returns. If no joy then there's some onboard hardware causing the problem.

    Based on what you've already done, I'd look at wiring, cables and fixed stuff on the case.
     

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