Set the data duplication limit (MB)
- Policy ID
- DeviceControl_DataDuplicationMaximumQuota
- Scope
- Computer Configuration
- Supported on
- At least Windows Server 2016, Windows 10 Version 1607
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Windows Components › Microsoft Defender Antivirus › Device Control
Description
This setting defines the maximum amount of data that can be duplicated for device control.
When the limit is reached, files that are copied to removable storage will not be duplicated on the machine.
Options
Registry
ComputerHKEY_LOCAL_MACHINE
- DataDuplicationMaximumQuotaREG_SZ