Windows 10: Windows Client Guidance against speculative execution vulnerabilities

Page 59 of 74 FirstFirst ... 949575859606169 ... LastLast
  1.    08 Apr 2018 #580

    yeah i here you all my Kid just bought a HP Envy laptop from Best Buy for collage , i did the latest Bios that said it had security fixes, low and behold it was it seems only for Meltdown, nothing in it for Spectre i have my feelings that it was not even for meltdown and that was done by windows like on our systems, it makes me wonder is HP and amd going to fix this or do they think they are still impervious to it.
      My ComputerSystem Spec

  2.    08 Apr 2018 #581

    Ground Sloth said: View Post
    If you get the patch from the Microsoft Update Catalog, then Windows will load the microcode update into CPU memory on startup instead of the BIOS/UEFI. That's the only difference.
    Good to know. Thanks for your input.
      My ComputerSystem Spec

  3.    08 Apr 2018 #582

    Hi,

    Actually it's just an emulation and that KB from MUC will only work on FCU (1709) and nothing else.

    Cheers,
      My ComputersSystem Spec

  4.    08 Apr 2018 #583

    fdegrove said: View Post
    Hi,

    Actually it's just an emulation and that KB from MUC will only work on FCU (1709) and nothing else.

    Cheers,
    One would be hard pressed to think otherwise. Thanks also for your input. Always there at the right time...:)
      My ComputerSystem Spec

  5.    08 Apr 2018 #584

    fdegrove said: View Post
    Hi,

    Actually it's just an emulation and that KB from MUC will only work on FCU (1709) and nothing else.

    Cheers,

    No actual microcode is being loaded into CPU memory on startup?
      My ComputerSystem Spec

  6.    09 Apr 2018 #585

    Hi,

    Ground Sloth said: View Post
    No actual microcode is being loaded into CPU memory on startup?
    Not that I know of, no. Besides what CPU memory would that be ? There's only a number of cacheing memory blocks, right ?

    Cheers,
      My ComputersSystem Spec

  7.    09 Apr 2018 #586

    fdegrove said: View Post
    Hi,



    Not that I know of, no. Besides what CPU memory would that be ? There's only a number of cacheing memory blocks, right ?

    Cheers,

    I thought it's loaded into the same area of volatile memory on the CPU where the BIOS/UEFI loads the microcode update. I asked you about a month ago if Windows loads the microcode update into CPU memory, and you said that it does.

    KB4090007 Intel microcode Cumulative Update for Windows 10 v1709 - Page 4 - Windows 10 Forums
    Last edited by Ground Sloth; 09 Apr 2018 at 10:02.
      My ComputerSystem Spec

  8.    09 Apr 2018 #587

    Hi,

    I asked you about a month ago if Windows loads the microcode update into CPU memory, and you said that it does.
    I wasn't sure what exactly it was you meant by "CPU memory" at the time but assumed you meant DRAM memory in general.
    The way the emulation works there's no need to acces the CPU's hardware, it makes the OS believe the MC is what is presented by the software patch which is only active for as long as the OS is active.

    MC is CPU firmware so it's not something that resides in volatile memory.

    Cheers,
      My ComputersSystem Spec

  9.    09 Apr 2018 #588

    The BIOS/UEFI updates the CPU microcode by loading the update into volatile memory on the CPU during boot. I thought Windows essentially did the same thing during startup. Thanks for clarifying.
      My ComputerSystem Spec

  10.    10 Apr 2018 #589

    Hi,

    The BIOS/UEFI updates the CPU microcode by loading the update into volatile memory on the CPU during boot.
    MC is a software interpretation layer that sits between the cpu's firmware and the computer system as a whole and resides in the cpu's non-volatile memory. Once it's updated it stays that way untill the next update etc.
    In a way it can be viewed as a piece of software that talks to the cpu telling it how to "read" and "execute" instructions coming from the system.

    Cheers,
      My ComputersSystem Spec


 
Page 59 of 74 FirstFirst ... 949575859606169 ... LastLast

Related Threads
The PowerShell script execution policies enables you to determine which Windows PowerShell scripts (if any) will be allowed to run on your computer. Windows PowerShell has four different execution policies: Execution Policy Description ...
Source: Mitigating speculative execution side-channel attacks in Microsoft Edge and Internet Explorer - Microsoft Edge Dev Blog See also update: Cumulative Update KB4056892 Windows 10 v1709 Build 16299.192 - Windows 10 Forums
Source: Google Online Security Blog: Disclosing vulnerabilities to protect users
Windows 10 - Need some guidance on recovery in Installation and Upgrade
One of my spare Windows 10 machines is on life support. I must have clobbered it somehow when I was tweaking the multiple display settings ( to incorporate a HDMI projector). It actually worked fine all week, but today, when I tired to set it...
Read more: http://www.zdnet.com/article/microsoft-offers-it-guidance-to-prepare-for-windows-as-a-service/
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 04:09.
Find Us