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How to uninstall a BIOS update?

Anonymous user -  
brucine Posted messages 24831 Registration date   Status Member Last intervention   -
Hello,

I have an HP laptop and the latest BIOS update offered by the manufacturer is numbered F21. However, Microsoft Update managed to install an F22 update that is not working well. Can someone tell me how to revert to version F21?

I downloaded the F21 update from the manufacturer's website and installed it from Windows. On the first restart, F21 was back. However, Windows required another restart, supposedly to complete the installation. But F22 came back and Windows is asking me to restart again.

Cheval Bleu

Configuration: Windows / Firefox 94.0

4 answers

  1.
    Redbart Posted messages 20952 Registration date   Status Member Last intervention   3 382
     
    Hello
    I've had Windows since XP, never heard that Windows Update installs BIOS!

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    1. Chevalbleu
       
      I've had Windows since the ME edition and this is the first time this has happened to me. But it doesn't matter. Your comment doesn't help.
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      1. fabul Posted messages 42131 Registration date   Status Moderator Last intervention   6 061 > Chevalbleu
         
        Check if it's an HP program

        Uninstall them, or disable all of them using Autoruns, in Logon, Scheduled tasks, and Services
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      2. Redbart Posted messages 20952 Registration date   Status Member Last intervention   3 382 > Chevalbleu
         
        The BIOS is on an EPROM, you need specific HP software and to follow a strict procedure

        you can replace one BIOS with another

        we can't help you, you are starting with a risky assumption and not indicating what hardware you are working with
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  3. flo88 Posted messages 28484 Registration date   Status Contributor Last intervention   Ambassadeur 5 168
     
    Hi

    So, what's going wrong with the BIOS update?

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  4. Anonymous user
     
    Clarifications for those who believe I am making speculative statements:

    Windows Update offers driver updates that are not installed automatically. Among them, there was one called "HP inc. - Firmware - 15.22.1.0". I clicked on it without knowing that "Firmware" was another name for "BIOS" since Microsoft does not provide any explanation about the hardware that these software are supposed to modify. Yes, I know, I made a mistake.

    My computer is an HP, 15-dy1018ca
    Intel Core i5-1035G1
    BIOS Mode: UEFI
    Motherboard ID: 86C9
    Current BIOS driver version: 15.22.1.0
    BIOS product version: F22
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    1. flo88 Posted messages 28484 Registration date   Status Contributor Last intervention   5 168
       
      There is no mistake on your part, an update, whatever it is, should not cause any problems.
      What exactly is happening with the version in question on the PC that requires rolling back?
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      1. Anonymous user > flo88 Posted messages 28484 Registration date   Status Contributor Last intervention  
         
        I have the following message in the device manager:

        This device cannot start. (Code 10)

        Indicates encountering or specifying an unknown version number of the service. It may be a recent version that the service does not recognize yet.

        More specifically, I am unable to upgrade Windows by booting the computer from a USB stick.

        P.S.: I don't want advice on how to upgrade Windows. I want to repair my BIOS.
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      2. flo88 Posted messages 28484 Registration date   Status Contributor Last intervention   5 168 > Anonymous user
         
        You should update all the drivers available on the HP website for your PC; I believe that's all it is. The BIOS version has updated the USB controller, and the old driver is no longer functional.
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      3. brucine Posted messages 24831 Registration date   Status Member Last intervention   4 166 > flo88 Posted messages 28484 Registration date   Status Contributor Last intervention  
         
        Hello,

        In terms of semantics, it is not Windows Update that includes specific updates for OEM PCs, but rather those updates that are the responsibility of the OEM manufacturer who puts what they want in there.

        This behavior is due to all the utilities that HP installs on its machines (HP Support Assistant...) which serve no purpose: when they are uninstalled, Windows Update takes over, and it does not prevent you from manually installing an HP update if needed.

        I don't see how a BIOS update tailored to a machine would prevent it from functioning; rather, one should look for the intruder in third-party drivers.

        That said, the firmware downgrade (at the user's own risk) is described by HP; it involves downloading HP PC Hardware Diagnostics.

        You create a USB drive for it, the necessary bin file can be found in HP_TOOLS/Hewlett-Packard/BIOS/Current/.

        My idea is that the HP PC Hardware Diagnostics file is specific to each PC: it is inconceivable that all the bin files for all models are included; but if this were not the case, you should first find the bin file suitable for the firmware you want to implement, and not confuse models, otherwise you're heading for disaster.

        Then it should simply be a matter of booting via the BIOS from the USB drive in question, where there should be a Firmware Management menu with a BIOS Recovery option, from where you navigate, when prompted for which image to apply, to the relevant bin file.
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