Windows 10: Enable Retpoline on Windows 10 1809 and Server right now

Discus and support Enable Retpoline on Windows 10 1809 and Server right now in Windows 10 News to solve the problem; Microsoft has tested Retpoline, a new mitigation method against Spectre variant 2 by Google, on Windows 10 Insider Builds for some time now. The... Discussion in 'Windows 10 News' started by GHacks, Mar 6, 2019.

  1. GHacks
    GHacks New Member

    Enable Retpoline on Windows 10 1809 and Server right now


    Microsoft has tested Retpoline, a new mitigation method against Spectre variant 2 by Google, on Windows 10 Insider Builds for some time now. The company brought Retpoline to Windows 10 version 1809 by including it in the March 1 cumulative update KB4482887 for the version of Windows 10.

    Tip: use the free InSpectre program for Windows check the vulnerability status.

    Retpoline promises improved performance compared to the previous mitigation method used by Microsoft in its operating systems. Microsoft monitored the performance of Windows 10 systems and determined that Retpoline improved the launch time of Office applications by about 25% among other benefits.


    When all relevant kernel-mode binaries are compiled with retpoline, we’ve measured ~25% speedup in Office app launch times and up to 1.5-2x improved throughput in the Diskspd (storage) and NTttcp (networking) benchmarks on Broadwell CPUs in our lab.

    Retpoline is not enabled by default on production devices even though it is included in the March 1 update. Microsoft plans to roll out the mitigation over the course of the coming months.

    Administrators who don't want to wait can enable Retpoline right away provided that the devices run Windows 10 version 1809 and have the latest cumulative update installed.

    Microsoft employee Mehmet Iyigun describes the process on the Tech Community site. Note that it is recommended that you back up the system and data before you apply the change.

    Windows 10 Clients

    Enable Retpoline on Windows 10 1809 and Server right now regpoline-windows-10.png

    Note: Microsoft did not enclose the Registry key path with "". If you copy paste Microsoft's command you will receive an error.

    1. Open an elevated command prompt, e.g. by opening Start, typing cmd.exe, right-clicking on the result, and selecting run as administrator.
    2. Run the following two commands:
      1. reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 0x400
      2. reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverrideMask /t REG_DWORD /d 0x400
    3. Restart the PC.

    Enable Retpoline on Windows 10 1809 and Server right now registry-edited.png

    Windows 10 Server

    1. Open an elevated command prompt.
    2. Run the following two commands:
      1. reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 0x400
      2. reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverrideMask /t REG_DWORD /d 0x401
    3. Restart the PC.

    Note that you can make the changes in the Registry editor directly as well if you prefer to do so.

    Verification


    You may use the Get-SpeculationControlSettings PowerShell cmdlet to verify the status of Retpoline. BTIKernelRetpolineEnabled and BTIKernelImportOptimizationEnabled should be returned as True in the output.

    Microsoft notes that Skylake and newer generations of Intel processors are not compatible with Retpoline; these will only return BTIKernelImportOptimizationEnabled as enabled when the command is run.

    Ghacks needs you. You can find out how to support us here or support the site directly by becoming a Patreon. Thank you for being a Ghacks reader. The post Enable Retpoline on Windows 10 1809 and Server right now appeared first on gHacks Technology News.

    read more...
     
    GHacks, Mar 6, 2019
    #1
  2. Ahhzz Win User

    Windows 10 Tweaks

    Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

    Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

    • Open a new Explorer window.
    • Click View in the ribbon.
    • Click Options.
    • Under General, next to “Open File Explorer to:” choose “This PC.”
    • Click OK


    credit to Lifehacker.
     
    Ahhzz, Mar 6, 2019
    #2
  3. Brink Win User
    Mitigating Spectre variant 2 with Retpoline on Windows


    Source: Mitigating Spectre variant 2 with Retpoline on Windows - Microsoft Tech Community - 295618
     
    Brink, Mar 6, 2019
    #3
  4. Monk.e83 Win User

    Enable Retpoline on Windows 10 1809 and Server right now

    Unlocked Realtek HD Audio Drivers Windows 7 & 8 (With Dolby Digital Live and DTS Interactive)

    DTS supported natively by Windows 8/8.1 and it should work on windows 10 too just DDL require to unlock your driver .
     
    Monk.e83, Mar 6, 2019
    #4
Thema:

Enable Retpoline on Windows 10 1809 and Server right now

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