Windows 10: After the w10 may update my pc turns right back on a few seconds after I shut it down

Discus and support After the w10 may update my pc turns right back on a few seconds after I shut it down in Windows 10 Installation and Upgrade to solve the problem; The May update started it's updating yesterday when I shut my pc down. So I expected it to finish today on start up. This it duly did. I now have the... Discussion in 'Windows 10 Installation and Upgrade' started by GarrAxe, May 15, 2019.

  1. GarrAxe Win User

    After the w10 may update my pc turns right back on a few seconds after I shut it down


    The May update started it's updating yesterday when I shut my pc down. So I expected it to finish today on start up. This it duly did. I now have the issue that about 5-10 seconds after my pc powers down (shutdown through start-->shutdown) it powers itself right back on again. I have disabled power up via USB devices (keyboard and mouse) in the bios, I have unchecked 'allow this device to wake up pc' on the kb/m in device manager and have disabled wake for tasks and quick start up. Now I am stumped. Any ideas? It was fine last week prior to the May update.

    :)
     
    GarrAxe, May 15, 2019
    #1
  2. MartynasB Win User

    PC only shuts down on a second try


    Hello,

    I posted here yesterday asking for help on a similar problem yesterday: GPU keeps working (fans spinning) for a few seconds after shutdown - Windows 10 Forums

    Basically, what happens now is as follows: When I press shutdown from start menu and the PC screen goes black at the end of it, I can hear components stopping their work, but pretty much all fans keep working (PSU fan, case fans, GPU fans). They work for 20-30 seconds and then I hear a Mobo beep (the same one you hear when you turn on your PC) and the PC boots back like it's nothing. When I reach login screen and shut down again from there, the PC fans again keep spinning after components turn off, but only a few seconds this time. The PC components then turn on and immediately turn off together with the fans.

    Sorry for the poor phrasing, English is not my native language and I try my best here.

    This complicated double-take shut down process only began after I disabled fast startup in Windows 10 (some guys on various forums suggested that I do that). Before I disabled them, the problem was like the one I linked to in the beginning. The whole problem started after I installed a second HDD. During the installation I also removed the GPU to allow me to fix some cables.

    Besides the shut down, the PC seems to be working just fine. No crashes, no BSODs - nothing. Only this strange shut down.


    Things I've already tried:
    • Disabling fast startup
    • Removing my second hard drive
    • Changing its SATA plugs
    • Changing SATA cables
    • Changing HDD power connector cables
    • Removing and putting back the GPU
    • Updating chipset driver
    • Shutting down from login menu
     
    MartynasB, May 15, 2019
    #2
  3. PC turns on for a split second then shuts off

    hrm...so the original symptom is that your PC would turn itself off after a couple of seconds. you reset the bios and now it doesnt shut down, but instead it just sits at the screen as it looks for a network address? try resetting your bios again.
     
    Easy Rhino, May 15, 2019
    #3
  4. After the w10 may update my pc turns right back on a few seconds after I shut it down

    PC turns on for a split second then shuts off

    When I hit the power button my rig turns on then shuts off less than a second later. All my fans spin then it shuts off then tries to turn on again but does the same thing. Im thinking its my psu but I dont want to jump to anything yet.
     
    ShadowFold, May 15, 2019
    #4
Thema:

After the w10 may update my pc turns right back on a few seconds after I shut it down

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