Policy

NTFS parallel flush threshold

Windows 11 25H2

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Policy overview

Key metadata and intent for this policy.

ClassComputer
CategorySystem > Filesystem > NTFS
Supported onAt least Windows Server 2016, Windows 10

Supported OS tags: Windows10, Windows10RT, Windows11, WindowsServer2016

When flushing modified file data from memory, NTFS chooses to use one or more threads based on how many files are currently open. This setting gives control over the open file threshold used to trigger parallel flush.

Internal name
NtfsParallelFlushThreshold
Policy ID
1d794842a6d3
Elements
1

Registry values

How enabled and disabled states update the registry.

No explicit registry values are set for enabled or disabled states.

Policy elements

Inputs and configuration options exposed by this policy.

ElementTypeRegistry mappingConstraints & behavior
Open File Threshold:
ID NtfsParallelFlushThresholdID
decimal
HKLM\System\CurrentControlSet\Policies\NtfsParallelFlushThreshold
Type REG_DWORD
Range: 100 to 1000000

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