系统复制reg add “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\Applicability” /v “BranchName” /d “fbl_release” /t REG_SZ /f  reg add “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\Applicability” /v “ThresholdRiskLevel” /d “low” /t REG_SZ /f  reg delete “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\Applicability” /v “ThresholdInternal” /f  reg delete “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\Applicability” /v “ThresholdOptedIn” /f  1.2.3.4.5.6.7.