NTFS parallel flush worker threads: registry value NtfsParallelFlushWorkersComputerHKLM\System\CurrentControlSet\Policies

Policy ID: NtfsParallelFlushWorkers
Scope: Computer Configuration
Supported on: At least Windows Server 2016, Windows 10
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: System › Filesystem › NTFS

Registry

NtfsParallelFlushWorkers

REG_DWORDComputer

HKLM\System\CurrentControlSet\Policies Current key

Enabled value: Depends on the option value
Element: Open File Threshold:
Value type: REG_DWORD
Minimum value: 0
Maximum value: 1024

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Policies]

; Value names and types follow the ADMX. Replace <enter value> below with your own data
"NtfsParallelFlushWorkers"=dword:<enter value>

CMD

:: Value names and types follow the ADMX. Replace <enter value> below with your own data

reg add "HKLM\System\CurrentControlSet\Policies" /v "NtfsParallelFlushWorkers" /t REG_DWORD /d "<enter value>" /f

PowerShell

# Value names and types follow the ADMX. Replace <enter value> below with your own data

New-Item -Path 'HKLM:\System\CurrentControlSet\Policies' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\System\CurrentControlSet\Policies' -Name 'NtfsParallelFlushWorkers' -PropertyType DWord -Value '<enter value>' -Force | Out-Null