Windows 10: powercfg -reload shows 5 instances of "Legacy Kernel Driver" under every section.

Discus and support powercfg -reload shows 5 instances of "Legacy Kernel Driver" under every section. in Windows 10 Performance & Maintenance to solve the problem; My computer stopped going to sleep after the latest Microsoft update. Powercfg -reload reports the following: SYSTEM: [PROCESS] Legacy Kernel... Discussion in 'Windows 10 Performance & Maintenance' started by InwardApollo985, Feb 17, 2021.

  1. powercfg -reload shows 5 instances of "Legacy Kernel Driver" under every section.


    My computer stopped going to sleep after the latest Microsoft update. Powercfg -reload reports the following:


    SYSTEM:

    [PROCESS] Legacy Kernel Caller

    [PROCESS] Legacy Kernel Caller
    [PROCESS] Legacy Kernel Caller
    [PROCESS] Legacy Kernel Caller
    [PROCESS] Legacy Kernel Caller

    AWAYMODE:
    None

    EXECUTION:
    [PROCESS] Legacy Kernel Caller
    [PROCESS] Legacy Kernel Caller
    [PROCESS] Legacy Kernel Caller
    [PROCESS] Legacy Kernel Caller
    [PROCESS] Legacy Kernel Caller


    PERFBOOST:

    [PROCESS] Legacy Kernel Caller


    ACTIVELOCKSCREEN:

    [PROCESS] Legacy Kernel Caller

    [PROCESS] Legacy Kernel Caller

    [PROCESS] Legacy Kernel Caller

    [PROCESS] Legacy Kernel Caller

    [PROCESS] Legacy Kernel Caller


    Anyone know what is causing this and how to get rid of it? It usually the update service holding it up but that says I'm up to date.


    Thanks in advance,

    :)
     
    InwardApollo985, Feb 17, 2021
    #1
  2. SinusPi Win User

    Windows 10 won't sleep: "Legacy Kernel Caller" in PERFBOOST section of "powercfg -requests" at fault?

    Today, my Windows 10 just won't go to sleep.

    Running "powercfg -requests" shows:

    DISPLAY:

    None.

    SYSTEM:

    None.

    AWAYMODE:

    None.

    EXECUTION:

    None.

    PERFBOOST:

    [DRIVER] Legacy Kernel Caller

    Power Manager

    ACTIVELOCKSCREEN:

    None.

    I can (and did, to no avail) add "Legacy Kernel Caller" to "powercfg /requestsoverride Driver "Legacy Kernel Caller" system", but it's not in a SYSTEM section, it's in PERFBOOST, and "powercfg /requestsoverride" has no option to
    ban a request from there. I found that "powercfg /requestsoverride" actually just manages the "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerRequestOverride" registry branch, and tried adding some more extensive bitmasks (0xff, why not?),
    but I only managed to override DISPLAY, SYSTEM, AWAYMODE and EXECUTION - nothing on PERFBOOST.

    Of course no USB devices are allowed to wake the system up anymore ("powercfg -devicequery wake_armed" is empty), the power plan option allowing timers to wake the system is off.

    How do I get it to sleep again?
     
    SinusPi, Feb 17, 2021
    #2
  3. Ebbenezer Win User
    [Driver] Legacy Kernel Caller Power Manager

    Hi. I cant put my (almost) brand new win 10 pc (Asus G752VS) to sleep. Long story short, here is the output from CMD.

    Code:
    Running "powercfg -requests" shows:DISPLAY:
    
    None.
    
    SYSTEM:
    
    None.
    
    AWAYMODE:
    
    None.
    
    EXECUTION:
    
    None.
    
    PERFBOOST:
    
    [DRIVER] Legacy Kernel Caller
    
    Power Manager
    
    ACTIVELOCKSCREEN:
    
    None.
    Any idea how to get this driver to stop waking up my computer? Is there any way to remove this driver all together? Or how do I turn it off?
    Thanks,
     
    Ebbenezer, Feb 17, 2021
    #3
  4. Ebbenezer Win User

    powercfg -reload shows 5 instances of "Legacy Kernel Driver" under every section.

    [Driver] Legacy Kernel Caller Power Manager

    Hi, thanks for your reply.

    I waited till the indexing was finished and checked CMD with the power request command to see if there was anything new. There was nothing and I proceeded to try to put my pc to rest. It woke up again sadly. Got the same issue as I got at first:

    C:\WINDOWS\system32>powercfg -requests

    DISPLAY:

    None.

    SYSTEM:

    None.

    AWAYMODE:

    None.

    EXECUTION:

    None.

    PERFBOOST:

    [DRIVER] Legacy Kernel Caller

    Power Manager

    ACTIVELOCKSCREEN:

    None.
     
    Ebbenezer, Feb 17, 2021
    #4
Thema:

powercfg -reload shows 5 instances of "Legacy Kernel Driver" under every section.

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