Enable file screens: registry value ExcludedFileTypesComputerHKLM\Software\Policies\Microsoft\Windows\NetCache

Policy ID: Pol_ExclusionListSettings
Scope: Computer Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: Network › Offline Files

Registry

ExcludedFileTypes

REG_SZComputer

HKLM\Software\Policies\Microsoft\Windows\NetCache Current key

Enabled value: Depends on the option value
Element: Extensions:
Value type: REG_SZ
Maximum length: 4096

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\NetCache]

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

CMD

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

reg add "HKLM\Software\Policies\Microsoft\Windows\NetCache" /v "ExcludedFileTypes" /t REG_SZ /d "<enter value>" /f

PowerShell

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

New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows\NetCache' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\NetCache' -Name 'ExcludedFileTypes' -PropertyType String -Value '<enter value>' -Force | Out-Null