Windows 10: HPET automatically re-enabling itself after every startup

Discus and support HPET automatically re-enabling itself after every startup in Windows 10 Performance & Maintenance to solve the problem; Hello, One of the games I play (Warthunder) only runs smoothly when the High Precision Event Timer is disabled through the elevated cmd command:... Discussion in 'Windows 10 Performance & Maintenance' started by ost, Aug 20, 2015.

  1. OST
    ost Win User

    HPET automatically re-enabling itself after every startup


    Hello,
    One of the games I play (Warthunder) only runs smoothly when the High Precision Event Timer is disabled through the elevated cmd command:

    Code: bcdedit /deletevalue useplatformclock[/quote] After the command completes, I restart. At this point, HPET has been successfully disabled and everythings fine. But for some reason every time I restart without entering the CMD command beforehand, it turns itself on again. Is this an intended effect, and is there any way I can keep HPET disabled throughout multiple restarts?

    Also, in the BIOS, there is an option called ACPI HPET table, which was by default enabled. I tried disabling it but it seemed to have no effect on whether HPET was enabled or disabled.

    Thanks for your help.

    :)
     
    ost, Aug 20, 2015
    #1
  2. BULLDOGXX
    BulldogXX Win User

    Windows Defender 10

    Windows Defender does automatically update itself and run scans in the background, unless you disable it in Settings. And even then it will automatically re-enable itself after a while.
     
    BulldogXX, Aug 20, 2015
    #2
  3. CDNKIWI
    CDNKIWI Win User
    Enabling HPET with Windows 10

    Hi Aswin,

    Apologies I should have provided more detail.

    I am referring to the High Precision Event Timer. There is conflicting information out there and I wanted to clarify something with respect to Windows 10 and how it handles this.



    I am running Microsoft Windows 10 Professional Build 10586 on an SanDisk SSD with a ~5 year old GIGABYTE P55A-UD4P motherboard; GIGABYTE GeForce GTX 460 GPU; 8GB Dual-channel DDR3.



    In this post:

    Windows 10 - disable HPET before install and enjoy low latencies! - Overclock.net - An Overclocking Community
    MonarchX states:

    When HPET (High Precision Event Timer) was enabled in BIOS, Windows 8.1 would automatically use it and install system device driver for it. Now I advice to disable HPET because even if you have it enabled in BIOS, Windows
    10 won't use it by default, but it will install the system device driver for it. That is GOOD news because Windows 10 finally switched to some other (new?) method of handling latencies and it works much better than HPET!

    So the questions are as follows:

    Does Windows 10 have its own implementation of the High Precision Event Timer superseding the built in HPET enabled in the BIOS of certain motherboards?

    If that is the case then I will disable HPET.

    If that is not true and Windows 10 can still use HPET, then I want to know if it has to be enabled both in the Bios and by modifying the Boot Configuration Data (BCD) store. Because
    in this post and others I have seen:

    MWO: Forums - Massive Fps Improvement Through Enabling Hpet In Bios And Win10

    They state:

    To enable it in Windows 10, with administrative priviledges you must modify BCD

    bcdedit /set useplatformclock true

    Thank you for taking the time to answer this question.
     
    CDNKIWI, Aug 20, 2015
    #3
  4. RED5GOAHEAD
    red5goahead Win User

    HPET automatically re-enabling itself after every startup

    me too, since I had Windows 7. Also on my system the useplatformclock even with hpet on bios disabled cause freeze.

    It's unbeliaveble that a parameter for debug purpose (said by Microsoft) it's enabled by default maybe by the Amd drivers.
     
    red5goahead, Sep 6, 2015
    #4
Thema:

HPET automatically re-enabling itself after every startup

Loading...

  1. HPET automatically re-enabling itself after every startup - Similar Threads - HPET automatically enabling

  2. Windows Update starts itself automatically at startup, help

    in Windows 10 Gaming
    Windows Update starts itself automatically at startup, help: Is there any way to stop this happening? My computer slows down to much even with a SSD and boot time is also affected by this because MSI logo takes like almost a 25-30 seconds to complete to reach desktop. I can see WinUpdate process on task manager, when I click stop or...

  3. Windows Update starts itself automatically at startup, help

    in Windows 10 Software and Apps
    Windows Update starts itself automatically at startup, help: Is there any way to stop this happening? My computer slows down to much even with a SSD and boot time is also affected by this because MSI logo takes like almost a 25-30 seconds to complete to reach desktop. I can see WinUpdate process on task manager, when I click stop or...

  4. Windows Update starts itself automatically at startup, help

    in Windows 10 Installation and Upgrade
    Windows Update starts itself automatically at startup, help: Is there any way to stop this happening? My computer slows down to much even with a SSD and boot time is also affected by this because MSI logo takes like almost a 25-30 seconds to complete to reach desktop. I can see WinUpdate process on task manager, when I click stop or...

  5. "Automatically hide the taskbar in desktop mode" keeps re-enabling itself.

    in Windows 10 Customization
    "Automatically hide the taskbar in desktop mode" keeps re-enabling itself.: Hello, I was wondering if there was any fix to this issue? This has never happened to any computer I've owned before and it only started happening today. I've tried everything I could to stop this from happening, but nothing has been a solution....

  6. Windows Defender periodic scan re-enables itself

    in Windows 10 Ask Insider
    Windows Defender periodic scan re-enables itself: I disable it in task scheduler but it keeps enabling itself. How do I permanently disable periodic scans? What's the point of having periodic scans anyway if the protection is active 24/7 and scanning everything as it comes into the pc? submitted by /u/distopija [link]...

  7. Disable win 10 update it re-enabled itself?

    in Windows 10 Updates and Activation
    Disable win 10 update it re-enabled itself?: Using Win 10 Pro 1809, if i go into services, windows update, properties, startup type set to disabled. It seems to re-enable itself later on if not after a reboot. How does one stop it? I have reason to believe it is hard locking up my PC. it's listed in the error log...

  8. How to prevent Defrag from re-enabling itself

    in Windows 10 Customization
    How to prevent Defrag from re-enabling itself: I normally keep defrag/optimization set on a schedule for my internal hard drives - one SSD, one standard. I have the other drives disabled under 'choose drives' and I've also disabled 'defrag new drives automatically'. However, a few times a year I'll see my other drives...

  9. windows automatically re-enabling Windows Update service

    in Windows 10 Updates and Activation
    windows automatically re-enabling Windows Update service: I typically have the Windows Update service disabled so that i can download/install updates when i want to. However, sometime over the last month or so windows has started automatically re-enabling the Update service - I disable it... check it a few days later & it's back on...

  10. HPET automatically re-enabling itself after every startup (AMD)/Freeze

    in Windows 10 Support
    HPET automatically re-enabling itself after every startup (AMD)/Freeze: on my system the useplatformclock YES even with hpet on bios disabled cause freeze. It's unbeliaveble that a parameter for debug purpose (said by Microsoft) it's enabled by default at every start maybe by the Amd drivers. This is an huge issue since Windows 7 it cause...