Windows 10: PC turns on by itself after "shutdown /s"

Discus and support PC turns on by itself after "shutdown /s" in Windows 10 Performance & Maintenance to solve the problem; Hello, I have noticed a weird issue with my pc last week. Win 10 Pro 64-bit 1909 Last week I enabled Wake on Lan S5 Support from my BIOS and WOL... Discussion in 'Windows 10 Performance & Maintenance' started by Salvora, Mar 17, 2020.

  1. Salvora Win User

    PC turns on by itself after "shutdown /s"


    Hello,

    I have noticed a weird issue with my pc last week. Win 10 Pro 64-bit 1909

    Last week I enabled Wake on Lan S5 Support from my BIOS and WOL works as expected. I can send magic packet to wake up my computer from my network.

    However, I noticed that if any program like some downloader etc shuts down my computer Shut down computer when downloads are finished., pc turns off but in under a minute it boots up again.

    I have replicated the issue by using command prompt.

    "shutdown /s" command is the problem.

    Whenever I shut down my pc with this command, it shuts down. Then like 30-50 seconds later it boots up again. However, there is no problem if I shut down my pc with start menu.


    To further investigate the issue, I have disabled wake on lan S5 support on my pc and used "shutdown /s". There was no booting.

    Now I was suspicious of some network device sending magic packets and waking up the pc. To further test the issue. I have removed the ethernet cable and disconnected from LAN and internet. I have removed all the peripherals keyboard, mouse etc.

    I have checked which devices can wake the pc up.

    powercfg –devicequery wake_armed

    I disabled all of them.

    I disabled Task Scheduler from waking up the PC from the power settings.

    and issued "shutdown /s" command.

    Well, laptop turned off and in a minute it booted up again. I have no idea what is causing this. Event viewer power troubleshooter shows source "unknows".

    Any ideas would be welcome.

    :)
     
    Salvora, Mar 17, 2020
    #1

  2. My pc takes for ever to shut down when i restart

    Suggest cleaning up your startup list .There may be many services / Apps you can remove on startup which is not needed on boot or during shutdown.
    Before you shutdown the Pc check what is running in Task Manager as a program or service in not killing the process on shutdown

    Would suggest cleaning up running apps and services -Autoruns, StartupMonitor,HighjackThis,
    Malware Scan - Malwarebytes,ADWcleaner, Combofix
     
    SnakeDoctor, Mar 17, 2020
    #2
  3. PC Build Steps

    Ok just because I like steps i am going to create some steps. Please give me the stamp of approval/disapproval
    • Install system in case
      • Remember to connect SSD and optical to same SATA ports on motherboard
    • Turn on PC
    • setup HDD
    • run blend test in prime95 for 30-60 min
      • run realtemp at the same time
    • While in Prime95 test
      • if CPU goes above 70c in RealTemp, I have a leaky CPU
      • if my system locks up or blue screens, there is an instability in the system somewhere
      • if my system does not lock up or blue screen, my CPU is not damaged and I am in the clear!
    What do you guys think??
     
    anandsap123, Mar 17, 2020
    #3
  4. pigulici Win User

    PC turns on by itself after "shutdown /s"

    Pc problem, randomly doesn't turn on sometimes.

    "
    Fast startup is a feature in Windows that helps your computer start faster. You can use the following steps to enable or disable fast startup.

    • Type Control Panel in the search box.
    • Click Control Panel.
    • Click Power Options.
    • Click Choose what the power buttons do.
    • Click Change settings that are currently unavailable.
    • Scroll down to Shutdown settings and uncheck Turn on fast startup.
    • Click Save changes."
     
    pigulici, Mar 17, 2020
    #4
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PC turns on by itself after "shutdown /s"

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