Windows 8 and 8.1 Forums


Power Consumption With Hybrid Shutdown?

  1. #1


    St. Augustine
    Posts : 388
    windows 8.1 64, LT -Windows 10 Home 64

    Power Consumption With Hybrid Shutdown?


    Does a laptop on battery consume any power with hybrid shutdown? Considering the Windows 8.1 Fast Boot Enabled/Hybrid Shutdown feature.

    I was rather surprised to see the significant battery power drain during sleep as referenced in the attached article but I can't seem to get a definitive answer regarding the Hybrid Shutdown state.

    How Much Battery Life Does Sleep Mode Really Drain?

      My System SpecsSystem Spec

  2. #2


    Posts : 11
    Windows 8 x64


    Sleep and hybernation are not meant for laptops because during suspension and/or sleep the computer still uses power, altough you can't see or hear it doing that. Sleep and hybrid shutdown are practically the same thing. When you hybrid shutdown Windows 8 it's only being suspended which is exactly the same as sleep mode. That's why it's using power.
    In order to save power you need to turn off hybrid shut down. Look here about how to disable it: How to Disable Hybrid Boot and Shutdown in Windows 8
    I could show you the same thing but my Windows is entirely in Bulgarian and you wouldn't understand anything.
      My System SpecsSystem Spec

  3. #3


    St. Augustine
    Posts : 388
    windows 8.1 64, LT -Windows 10 Home 64


    Quote Originally Posted by rado84 View Post
    I could show you the same thing but my Windows is entirely in Bulgarian and you wouldn't understand anything.
    That's funny, but you're right, it would all look greek to me. No problem though as I know the process well. Actually, the hybrid shutdown is a variant of hibernate and sleep, a little of both and I think theoretically consumes much less power than hibernate or sleep but concerning laptops on battery I think it interesting that potential battery drain with the hybrid shutdown it is not really addressed anywhere or at least no where that I have seen.

    Thanks for your reply.
      My System SpecsSystem Spec

  4. #4


    Florida, USA
    Posts : 141
    Windows 8.1 Pro x64 with Media Center, Windows 10 Pro x64, Windows 7 x64 Ultimate SP1


    Shutting down with Fast Startup enabled does not use any battery power. It is a mode like hibernate (but not actually hibernate) where restart data is written to the hard drive. You will notice that Fast startup is not even available if hibernate is turned off.

    Hybrid sleep is another matter. It does consume power and it is really a mode intended for desktops.
      My System SpecsSystem Spec

  5. #5


    St. Augustine
    Posts : 388
    windows 8.1 64, LT -Windows 10 Home 64


    Quote Originally Posted by pbcopter View Post
    Shutting down with Fast Startup enabled does not use any battery power.
    That was my impression.

    Thanks for your reply
      My System SpecsSystem Spec

  6. #6


    Posts : 11
    Windows 8 x64


    Quote Originally Posted by pbcopter View Post
    Fast Startup (...) is a mode like hibernate where restart data is written to the hard drive.
    And in order to keep that data alive guess what's needed. Power. Which is why it drains power, altough it's a lot less than when in desktop mode.
      My System SpecsSystem Spec

  7. #7


    Florida, USA
    Posts : 141
    Windows 8.1 Pro x64 with Media Center, Windows 10 Pro x64, Windows 7 x64 Ultimate SP1


    Quote Originally Posted by rado84 View Post
    Quote Originally Posted by pbcopter View Post
    Fast Startup (...) is a mode like hibernate where restart data is written to the hard drive.
    And in order to keep that data alive guess what's needed. Power. Which is why it drains power, altough it's a lot less than when in desktop mode.
    No, during shutdown it writes data to the hard drive then all power is removed.
      My System SpecsSystem Spec

  8. #8


    Posts : 11
    Windows 8 x64


    Copter, it's quite clear to me you have no idea what you're talking about.
    There's an easy way to prove you wrong: put your computer (note that I say computer, not a laptop) to sleep or Hybrid Shutdown. When it appears to be off, remove your power cabble to simulate power loss for a few seconds then put it back and press the power button to attempt to wake it up/turn it on. First, you'll see your HDD led is on and not twinkling. You'll only get black screen with nothing on it. Then press the reset button and you'll get a pre-OS screen asking you to delete saved data from the disk. When you press Enter you'll get a normal startup.
      My System SpecsSystem Spec

  9. #9


    St. Augustine
    Posts : 388
    windows 8.1 64, LT -Windows 10 Home 64


    Quote Originally Posted by pbcopter View Post
    No, during shutdown it writes data to the hard drive then all power is removed.
    I believe that is what happens as well and that writing to the HDD is what is happening in the seconds during the hybrid shutdown process before the lights go out. But I have yet to find hybrid shutdown = zero power consumption when on battery documented in any technical material.
      My System SpecsSystem Spec

  10. #10


    Posts : 11
    Windows 8 x64


    I don't trust any documentation but my experience. So far I found out not everything is what it looks or sounds like on paper.
      My System SpecsSystem Spec

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Power Consumption With Hybrid Shutdown?
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