Microsoft is testing Retpoline, a new Specter 2 patching method from the Google, στα Windows 10 Insider Builds εδώ και αρκετό καιρό. Όπως φαίνεται η εταιρεία πρόσθεσε το Retpoline στα Windows 10 της versions 1809 with the March 4482887 cumulative update KB1.
Retpoline promises improved performance compared to the previous fix method used by Microsoft in its operating systems.
According to the company that tested the performance of Windows 10 systems, Retpoline improved the time frommovementof Office applications by approximately 25%.
Retpоline technology is not enabled by default even though it is included in the 1 March update. Microsoft plans to implement it in the coming months.
However, if you do not want to wait, we'll see below how you can immediately activate Retpoline, provided you run Windows 10 in the 1809 version and have installed the latest cumulative update.
Of course, before making any changes to your system, it is recommended that you back up.
For Windows 10 users
Open a command line with administrator permissions (search for cmd.exe, right-click the result and select run as administrator).
Run the following commands, and then restart your computer.
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Managers\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 0x400
reg add "HKLM \ SYSTEM \ CurrentControlSet \ Control \ Session Manager \ Memory Management" / v FeatureSettingsOverrideMask / t REG_DWORD / d 0x400
For Windows 10 Server
Open a command line with administrator permissions (search for cmd.exe, right-click the result and select run as administrator).
Run the following commands, and then restart your computer.
reg add "HKLM \ SYSTEM \ CurrentControlSet \ Control \ Session Manager \ Memory Management" / v FeatureSettingsOverride / t REG_DWORD / d 0x400
reg add "HKLM \ SYSTEM \ CurrentControlSet \ Control \ Session Manager \ Memory Management" / v FeatureSettingsOverrideMask / t REG_DWORD / d 0x401
Retpoline Verification
You can use it Get-SpeculationControlSettings PowerShell cmdlet to verify the status of Retpolline. BTIKernelRetpolineEnabled and BTIKernelImportOptimizationEnabled must return True to output.
Microsoft states that the Skylake and newer generations of Intel processors are not compatible with Retpoline and will only return BTIKernelImportOptimizationEnabled as enabled when you run the command.
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