Why does Microsoft bother end users to set registry flags for activating spectre protection...

Helfe beim Thema Why does Microsoft bother end users to set registry flags for activating spectre protection... in Windows 10 Support um eine Lösung zu finden; Usually this article [1] describes how to effectively enable or disable Spectre Variant 2 and Meltdown protection for Intel CPU, but this was limited... Dieses Thema im Forum "Windows 10 Support" wurde erstellt von K. Wester-Ebbinghaus, 10. April 2018.

  1. K. Wester-Ebbinghaus
    K. Wester-Ebbinghaus Gast

    Why does Microsoft bother end users to set registry flags for activating spectre protection...


    Usually this article [1] describes how to effectively enable or disable Spectre Variant 2 and Meltdown protection for Intel CPU, but this was limited to Servers.


    Now with April 2018 Updates for Windows 10 coming in there is new Setting that is mandantory to enable Spectre v2 for AMD Users AND this is not for Server AND it differs from Intel Setting.


    Let me show a scenario:

    a user or Company switches from Intel to AMD and Prior have ensure that they are protected again side-channel vulnerabilities.

    Now they have to think about, oh wait we have to Change the registry once again.


    At home Seriously no one will care about this. Except as the article Headlines Points out IT pros, and only some of them.



    in a company the Windows Server / Client guys are mostly not in the Team of the Hardware guys and may not even be Aware that their VM is now running on different CPU.


    Intel: reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 0 /f


    AMD: reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 64 /f


    AMD + Intel: reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverrideMask /t REG_DWORD /d 64 /f




    Can you give me reasonable answer why no one really care about getting things easier? Why not using the same mask for FeatureSettingsOverride for AMD and Intel?


    [1] https://support.microsoft.com/en-us/help/4073119/protect-against-speculative-execution-side-channel-vulnerabilities-in

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    #1 K. Wester-Ebbinghaus, 10. April 2018
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Why does Microsoft bother end users to set registry flags for activating spectre protection...

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