HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates

Check for the latest virus and spyware security intelligence on startup
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\UpdateOnStartUp
Specify the interval to check for security intelligence updates
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\SignatureUpdateInterval
Define the number of days after which a catch-up security intelligence update is required
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\SignatureUpdateCatchupInterval
Allow notifications to disable security intelligence based reports to Microsoft MAPS
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\SignatureDisableNotification
Specify the time to check for security intelligence updates
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\ScheduleTime
Specify the day of the week to check for security intelligence updates
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\ScheduleDay
Allow real-time security intelligence updates based on reports to Microsoft MAPS
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\RealtimeSignatureDelivery
Allow security intelligence updates from Microsoft Update
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\ForceUpdateFromMU
Define the order of sources for downloading security intelligence updates
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\FallbackOrder
Initiate security intelligence update on startup
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\DisableUpdateOnStartupWithoutEngine
Allow security intelligence updates when running on battery power
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\DisableScheduledSignatureUpdateOnBattery
Turn on scan after security intelligence update
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\DisableScanOnUpdate
Define security intelligence location for VDI clients.
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\SharedSignatureRoot
Define file shares for downloading security intelligence updates
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\DefinitionUpdateFileSharesSources
Define the number of days before virus security intelligence is considered out of date
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\AVSignatureDue
Define the number of days before spyware security intelligence is considered out of date
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\ASSignatureDue
Allows Microsoft Defender Antivirus to update and communicate over a metered connection.
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\MeteredConnectionUpdates
Turn on definition updates through both WSUS and the Microsoft Malware Protection Center
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\CheckAlternateHttpLocation
Turn on definition updates through both WSUS and Windows Update
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Signature Updates\CheckAlternateDownloadLocation