KB4465065 Intel Microcode Updates for Windows 10 v1809 - Sept. 26 Win Update

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  1. Posts : 111
    Windows 10 Pro 1903
       #50

    Guitarmageddon said:
    Ok very good. Appreciative of the help.

    Just curious, is there any increase to startup time or other lag when you system is getting the more current microcode from windows versus having it loaded to the board itself already i.e. from a bios flash? Or is it still only as fast/slow as the microcode may inherently permit (due to whatever performance optimizations it may have)
    You are already using the software microcode, there will be no lag loading it from the file instead of the bios.

    Don't worry, Linux always uses software microcode, and most likely you are using the Microsoft microcode, and it was not loading from the bios.

    Again, there is no lag, and you are already using it, it is just an update for a file you are already using, for the sake of the security you should update.
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  2. Guitarmageddon's Avatar
    Posts : 87
    Windows 10 home
       #51

    hana0 said:
    You are already using the software microcode, there will be no lag loading it from the file instead of the bios.

    Don't worry, Linux always uses software microcode, and most likely you are using the Microsoft microcode, and it was not loading from the bios.

    Again, there is no lag, and you are already using it, it is just an update for a file you are already using, for the sake of the security you should update.
    Ok thanks. I think now the concept has absorbed into my thick skull haha. Understanding better. I get to reading some sites like win-raid which are a wealth of extremely detailed knowledge, and think that Im missing out on doing things "the right way" but in the end I just confuse myself. I was reading their posts about microcode flashing and got lost....
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  3. Posts : 111
    Windows 10 Pro 1903
       #52

    Guitarmageddon said:
    Ok thanks. I think now the concept has absorbed into my thick skull haha. Understanding better. I get to reading some sites like win-raid which are a wealth of extremely detailed knowledge, and think that Im missing out on doing things "the right way" but in the end I just confuse myself. I was reading their posts about microcode flashing and got lost....
    No worries, the microcode update has fixes for a lot of CVE if you read the Intel and Microsoft release notes Common Vulnerabilities and Exposures - Wikipedia

    you are welcome,
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  4. Guitarmageddon's Avatar
    Posts : 87
    Windows 10 home
       #53

    so I manually applied the update and seemed to take just fine. However when I run that powershell script to see my microcode version, its still saying

    Running microcode revision : 0x0F (loaded by UEFI)
    UEFI CPU microcode revision : 0x0F


    But the Update release notes indicate:
    Coffee Lake S (6+2) 8th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-8670, i7-8670T, i7-8700, i7-8700K, i7-8700T Intel® Core™ Processor i5-8400, i5-8400T, i5-8420, i5-8420T, i5-8500 , i5-8500T, i5-8550, i5-8600, i5-8600K, i5-8600T, i5-8650, i5-8650K 906EA 0x96

    Am I missing something?
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  5. Posts : 111
    Windows 10 Pro 1903
       #54

    Guitarmageddon said:
    so I manually applied the update and seemed to take just fine. However when I run that powershell script to see my microcode version, its still saying

    Running microcode revision : 0x0F (loaded by UEFI)
    UEFI CPU microcode revision : 0x0F


    But the Update release notes indicate:
    Coffee Lake S (6+2) 8th Generation Intel® Core™ Processor Family Intel® Core™ Processor i7-8670, i7-8670T, i7-8700, i7-8700K, i7-8700T Intel® Core™ Processor i5-8400, i5-8400T, i5-8420, i5-8420T, i5-8500 , i5-8500T, i5-8550, i5-8600, i5-8600K, i5-8600T, i5-8650, i5-8650K 906EA 0x96

    Am I missing something?
    Don't use power shell, use Intel Extreme utility, you will even need the utility to tune the CPU

    In the utility information you will see the microcode revision.

    Don't worry, you are not missing anything,
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  6. Guitarmageddon's Avatar
    Posts : 87
    Windows 10 home
       #55

    hana0 said:
    Don't use power shell, use Intel Extreme utility, you will even need the utility to tune the CPU

    In the utility information you will see the microcode revision.

    Don't worry, you are not missing anything,
    Wow thanks for the input. I havent opened xtu for a while but what do you know, there is the microcode update. I wonder why that powershell did not indicate. I was just using the one provided on another thread. Thanks for your help.

    KB4465065 Intel Microcode Updates for Windows 10 v1809 - Sept. 26-xtu.png
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  7. ddelo's Avatar
    Posts : 2,229
    Windows 10 Pro x64
       #56

    Guitarmageddon said:
    Wow thanks for the input. I havent opened xtu for a while but what do you know, there is the microcode update. I wonder why that powershell did not indicate. I was just using the one provided on another thread. Thanks for your help.

    KB4465065 Intel Microcode Updates for Windows 10 v1809 - Sept. 26-xtu.png
    The XTU utility outputs the currently running microcode (the one you got from the KB4465065, which is 0x96).
    One would assume that, at least Intel’s utility will report the currently installed microcode in the firmware. Instead you get the most updated one (from the KB4465065), which supersedes the one in the firmware. So the script "correctly" reports that the "UEFI CPU microcode revision” (a.k.a the one the firmware has), as 0x0F, since you didn’t update the firmware.

    The question is why the script, reports that the Running microcode revision is still 0x0F.
    It is highly unlike that the KB4465065 doesn’t update the value “Update Revision” in the Registry key HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0, which is where the script gets the microcode revision from.
    My guess would be that, this has something to do with KB4465065, since other users have also reported strange results after applying this update.
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  8. mary7's Avatar
    Posts : 16
    win 10
       #57

    windows update doesn t offer me this microcode update yet
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  9. ddelo's Avatar
    Posts : 2,229
    Windows 10 Pro x64
       #58

    mary7 said:
    windows update doesn t offer me this microcode update yet
    It won't offer it. You have to download it from Microsoft Update Catalog and install it manually.
    To get it look at the first post of this thread in the section "How to obtain and install the update"
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  10. Posts : 111
    Windows 10 Pro 1903
       #59

    New update V3 9/4 Microsoft Update Catalog Not sure if it has something to do with Intel Microprocessor Memory Mapping Vulnerability Advisory - April 9 - Windows 10 Forums

    O wait, it says 9/4 but downloading the same old file ??? is that normal?
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