Windows Defender 可能会大量消耗系统性能，而且经常会有很多误报。虽然我推荐大多数人使用反病毒软件，但我不喜欢在不用于网络浏览的系统上启用它。
修改注册表
有这么多的注册表设置，但要关注的主要是以下这些。
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Defender\Features]
"MpPlatformKillbitsFromEngine"=hex:00,00,00,00,00,00,00,00
"TamperProtectionSource"=dword:00000000
"MpCapability"=hex:00,00,00,00,00,00,00,00
"TamperProtection"=dword:00000000
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender]
"PUAProtection"=dword:00000000
"DisableRoutinelyTakingAction"=dword:00000001
"ServiceKeepAlive"=dword:00000000
"AllowFastServiceStartup"=dword:00000000
"DisableLocalAdminMerge"=dword:00000001
"DisableAntiSpyware"=dword:00000001
"RandomizeScheduleTaskTimes"=dword:00000000
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Microsoft Antimalware]
"ServiceKeepAlive"=dword:00000000
"AllowFastServiceStartup"=dword:00000000
"DisableRoutinelyTakingAction"=dword:00000001
"DisableAntiSpyware"=dword:00000001
"DisableAntiVirus"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection]
"DisableRealtimeMonitoring"=dword:00000001
"DisableBehaviorMonitoring"=dword:00000001
"DisableOnAccessProtection"=dword:00000001
"DisableScanOnRealtimeEnable"=dword:00000001
"DisableIOAVProtection"=dword:00000001
"LocalSettingOverrideDisableOnAccessProtection"=dword:00000000
"LocalSettingOverrideRealtimeScanDirection"=dword:00000000
"LocalSettingOverrideDisableIOAVProtection"=dword:00000000
"LocalSettingOverrideDisableBehaviorMonitoring"=dword:00000000
"LocalSettingOverrideDisableIntrusionPreventionSystem"=dword:00000000
"LocalSettingOverrideDisableRealtimeMonitoring"=dword:00000000
"RealtimeScanDirection"=dword:00000002
"IOAVMaxSize"=dword:00000512
"DisableInformationProtectionControl"=dword:00000001
"DisableIntrusionPreventionSystem"=dword:00000001
"DisableRawWriteNotification"=dword:00000001如需更全面的清单，请查阅。
https://christitus.com/files/windefender_disable.reg
禁用服务
Windows Defender 使用和依赖的服务列表
WdNisSvc
WdNisDrv
WdFilter
WdBoot
wcncsvc
删除文件
有大量的 Windows Defender 的程序文件和日志，位于 C:\Program Files\Windows Defender
