Windows 8.1 Reboots Computer instead of Shutting Down

QWERTYFREAK

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Hello,

I've got an issue with Windows 8.1 x64 where sometimes (not always), if I Shut Down the computer, it'll shut down as normal, even displaying the "Shutting Down..." message, but rather than powering the machine off, it'll reboot just as if I had initiated a Restart instead of a Shut Down.
I definitely know I haven't accidentally told the computer to Restart as it's happened more than once, I know I've selected the Shut Down button and Windows 8.1 even states it's Shutting Down and not Restarting. If I restart the computer instead of shutting it down, it'll restart just as it should, nothing wrong there.

There is no abnormal behaviour at all during this process. The computer does behaves identically to if it was supposed to Restart and Windows throws no errors, BSOD's or any trace of something going wrong and thus somehow causing the machine to reboot rather than shutdown. powercfg /lastwake gives no information at all and Event Viewer lists nothing under Critical or Errors that could be a cause.

Most of the time though, the computer will just shut down as it should, but this random rebooting is getting very irritating. If I shut down the computer again after it has restarted (when I told it to Shut Down), it will then Shut Down as it should.

Something I should note however, when I shut down the computer, I do so through Classic Shell Start Menu's Shut Down button. Everytime these random reboot occur, I have shut the computer down via Classic Shell Start Menu. I rarely shut the computer down any other way, so perhaps somehow Classic Shell is to blame? Perhaps there way of telling Windows to shutdown is a bit flaky? I have no idea.
I believe the same issue occurred on my laptop (also running Windows 8.1 x64 with Classic Shell Start Menu) when I shut it down through Classic Shell's Start menu, but only once (I don't use my laptop nearly as much as my desktop). This problem has never occured on my desktop or laptop back when they were running Windows 8 (not 8.1).

Any help would be most appreciated.

Thank you.
 

My Computer

System One

  • OS
    N/A
I would blame that "Classic shell" first. Did you try shutting down Thru charms ?
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home made
    CPU
    AMD Ryzen7 2700x
    Motherboard
    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
    Graphics Card(s)
    Asus strix 570 OC 4gb
    Hard Drives
    Samsung 960 evo 250GB
    Silicon Power V70 240GB SSD
    WD 1 TB Blue
    WD 2 TB Blue
    Bunch of backup HDDs.
    PSU
    Sharkoon, Silent Storm 660W
    Case
    Raidmax
    Cooling
    CCM Nepton 140xl
    Internet Speed
    40/2 Mbps
    Browser
    Firefox
    Antivirus
    WD
I would blame that "Classic shell" first. Did you try shutting down Thru charms ?

Thanks for your comment CountMike.

Since posting this thread I have, yes. I've only had to shutdown 4 times since though, so I can't tell you if it's strictly a fault with Classic Shell or not yet.
 

My Computer

System One

  • OS
    N/A
You can also make a shortcut on desktop with these parameters: "%windir%\System32\shutdown.exe -s -f -t 00" and assign appropriate icon for it. It is for complete shutdown without "Hybrid" , it could be placed on taskbar or pinned to Start too.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home made
    CPU
    AMD Ryzen7 2700x
    Motherboard
    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
    Graphics Card(s)
    Asus strix 570 OC 4gb
    Hard Drives
    Samsung 960 evo 250GB
    Silicon Power V70 240GB SSD
    WD 1 TB Blue
    WD 2 TB Blue
    Bunch of backup HDDs.
    PSU
    Sharkoon, Silent Storm 660W
    Case
    Raidmax
    Cooling
    CCM Nepton 140xl
    Internet Speed
    40/2 Mbps
    Browser
    Firefox
    Antivirus
    WD
You can also make a shortcut on desktop with these parameters: "%windir%\System32\shutdown.exe -s -f -t 00" and assign appropriate icon for it. It is for complete shutdown without "Hybrid" , it could be placed on taskbar or pinned to Start too.

Thanks for the tip, but I have Hybrid Shutdown disabled in Windows anyway. I much prefer doing a clean shutdown than a partial Hibernate style Shutdown. My computer only takes around 10 seconds from UEFI to Desktop from scratch anyway.
 

My Computer

System One

  • OS
    N/A
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