Windows 10 shuts down out of the blue while hardware still on

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  1.    #1

    Windows 10 shuts down out of the blue while hardware still on


    Hey guys,

    Well, since a few months ago, I've been encoutering a problem with Windows 10 (64bit). While I'm doing stuff at my desktop (browsing, using Word, etc.), the OS just shuts down.

    Now here's the thing, the computer doesn't shut down, only the OS. In other words, while the peripherals close (mouse, monitors, keyboard, etc.), the case is still active. The fans are going, the rgb are going, like nothing changed there. However, even though the case is active, when I fix it, the OS says that there was a problem since it closed abnormally. Which is another indication that it's a software problem.

    The way I fix it when it happens, is that I close my computer (using the case button) and I then unplugg everything (I only leave a monitor plugged in). Then I turn the pc back on and it works. Then I simply plug the rest of the peripherals in and done.

    The thing is, it happens every day and at some times where I work on my computer, so it's getting annoying. I've also tried tons of things to fix it, but nothing.

    You can see my specs in my profile, but I should also note a few things:
    1. The pc temp is better than normal, so there's no overheating.
    2. The HDDs are 100% healthy.
    3. The pc was scanned by Windows Defender and Malwarebytes and nothing was found (I do that regularly).
    4. The pc gets regural cleanups when it comes to software.
    5. I clean my pc as regural as I can from dusk and such.
    6. I checked the hardware myself and I also had a friend checked it out, but we both found nothing wrong.
    7. I turned "Fast Startup" off, just in case that was the problem, but nothing changed.
    8. All drivers are up to date and I have everything updated in general.
    9. I tried to see if something changes with one monitor instead of two, but nothing changed.
    10. I've also used the troubleshooter, but it found nothing.
    11. The cmd scan also found nothing.
    12. I don't use Sleep Mode or any of that.

    I'd really need some help, since I'm really clueless on how to fix this... If you need any more info or want to ask me something regarding this, feel free to do so.

    I'm really looking forward for your answer!
      My ComputerSystem Spec

  2.    #2

    Hi, sorry to hear of your problem - such problems are regularly reported- so feel free to search the forum for similar ones.
    As you can anticipate, could be hardware, could be software, including

    - PSU glitch/PSU problem
    - Software problem
    - Incompatibility following update or upgrade (what happened 'a few months ago'?
    since a few months ago
    - Other hardware problem

    Have you checked your RAM? (Tutorial available in tutorial section) Please report the result of running a check.
    Is all RAM identical?
    Did you make any hardware changes around the time this started?
    Are you overclocking?
    Was there any significant update or upgrade before this started? (See your Update History if it goes back far enough).
    Try
    Enable and Disable Driver Verifier in Windows 10

    What is your Windows build? Windows key + r, winver. Sadly it's not a forum requirement to specify this, so we have to ask time and again.

    Does Reliability History show anything significant corresponding to the time this happens?
    And the Event Viewer?

    Please confirm
    chkdsk c: /scan
    run from an admin command or Powershell prompt reports ok.

    If so, please run
    SFC /SCANNOW

    and report the result.

    Does the same thing happen in Safe Mode?

    Thanks.
      My ComputersSystem Spec

  3.    #3

    My first thought was to check the PSU.....I have had a PSU go bad over the years and your experience is exactly what happened, turned out to be a faulty 12V rail. If possible swap it out, I appreciate not everyone has a spare PSU to hand, and see if this resolves the issue.
      My ComputerSystem Spec

  4.    #4

    Really thanks for your answers!

    So, here we go:
    1. I haven't checked my ram, so I'll do that. I'll use the method shown in the tutorial for that.
    2. I only use one 16GB RAM, placed in the socket recommended in the motherboard manual.
    3. I haven't changed anything in the hardware since the problem started.
    4. I'm not overclocking.
    5. I don't remember if it was after a big Windows update or anything.
    6. I've tried the Driver Verifier method. I'll see if it brings any results.

    My Windows 10 version is 1809.
    I've already run a chkdsk c: /scan and a SFC /SCANNOW, but it found nothing.

    As for Reliability Monitor: The only critical events shown (almost every day and perhaps even multiple times per day, is the Windows was not properly shut down, or that it stopped working. Also, I noticed a problem with svchost.exe_CDPUserSvc and Windows Shell Experience Host, where both stop working sometimes.

    Well, I don't think that's the case. I bought the PSU over a year ago and it doesn't seem to have any problems. Also, when the OS shuts down, the PSU is still working normally (I've checked with software if there were any wierd behaviours there, but I found nothing).


    EDIT: After the restart for the Driver Verifier (since I had to check all the non MS drivers) the computer started but it said that Windows couldn't boot correctly and the only option was System Restore. I did it and all is fine now, but I don't know if it has something to do with the above problem or not. The Reliability Monitor said that it was a problem due to missing Windows files (probably because of the drivers, but it's fixed now I guess).

    - - - Updated - - -

    So, I run a RAM test and it found nothing at all.
    Last edited by Manosman; 4 Days Ago at 07:05.
      My ComputerSystem Spec

  5.    #5

    OK.....

    ......if it happens again, please look at the PSU It's doesn't matter how old it is - these things fail, especially now companies are going 'lite' on materials to save money - Industry still hasn't recovered from the global recession ( but that's another story ).

    If the system is shutting down randomly and didn't go through the shut down sequence you are most likely going to have corrupt files/software issues too.

    I had exactly the same thing.....even took advice from PC specialist who claimed a new PSU wouldn't fix the issue. I went on my gut feeling, bought a new PSU and guess what? It never had that issue again.
      My ComputerSystem Spec

  6.    #6

    Checking for PSU glitches needs technical equipment, or knocking up a bit of circuitry I suppose.
    If the PSU ouput is normally stable (flat line) then the problem is detecting or monitoring glitches or deviations.

    If the output is not stable all the time, then you'd see that easily with an oscilloscope. Which is great if you know someone who has one... or a repair shop.

    Otherwise all you can do is try substitution.
      My ComputersSystem Spec


  7.    #7

    Very well, since I have checked everything else, then the next time I may take the PSU to an expert to check it out. At least as best as he can.

    However, if it isn't the PSU, what else could it be? I mean, I may know a guy who is trustworthy at these things, so I'll have him check my PSU out and maybe run a few tests if he can. But what if he tells me that it's all good? What should I do next?

    EDIT: I've also noticed something (I think important) that I forgot to mention. These "OS shutdowns" happen only a few minutes after I open my computer (through a normal boot or a restart). After 5-15 minutes it happens. However, once I fix it they way I do, or if these minutes pass without it doing that, then it may stay open for the rest of the whole day, without any problems.
      My ComputerSystem Spec

  8.    #8

    End of my post #2..

    Does the same thing happen in Safe Mode?
      My ComputersSystem Spec

  9.    #9

    I don't know, it has never happened to occur while in safe mode. Then again, it's not like I use safe mode that much to be certain.

    Also, about the voltage, I took a picture of the PSU voltage values and they seem 100% normal:
    Click image for larger version. 

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      My ComputerSystem Spec

  10.    #10

    it has never happened to occur while in safe mode.
    - then it's most likely not the PSU!!!

    - unless load increases enough in normal mode to cause PSU problems.
    Power supply lines should be DC voltages. If there are spikes, dips, or high frequencies, these cannot usually be seen by devices recording DC voltages, of course. But the circuitry won't like them..

    So, now you can try a clean boot.. and see if your PC dies then. (Remember, in clean boot, all the normal drivers are loaded).
      My ComputersSystem Spec


 
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