Policy
Define the maximum size of downloaded files and attachments to be scanned
This policy setting defines the maximum size (in kilobytes) of downloaded files and attachments that will be scanned. If you enable this setting, downloaded files and attachments smaller than the size specified will be scanned. If you disable or do not configure this setting, a default size will be applied.
Pack Microsoft Windows
Category Windows Components / Microsoft Defender Antivirus / Real-time Protection
Policy ID
cf5e60450191 Internal name
RealtimeProtection_IOAVMaxSize Registry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection\IOAVMaxSizePolicy notes
This policy setting defines the maximum size (in kilobytes) of downloaded files and attachments that will be scanned. If you enable this setting, downloaded files and attachments smaller than the size specified will be scanned. If you disable or do not configure this setting, a default size will be applied.
Related policies
Configure local setting override for monitoring file and program activity on your computerConfigure local setting override for monitoring for incoming and outgoing file activityConfigure local setting override for scanning all downloaded files and attachmentsConfigure local setting override for turn on behavior monitoringConfigure local setting override to turn on real-time protectionConfigure monitoring for incoming and outgoing file and program activityConfigure performance mode status