Enable access-denied assistance on client for all file types: registry value EnableShellExecuteFileStreamCheckComputerHKLM\Software\Policies\Microsoft\Windows\Explorer

Policy ID: EnableShellAccessCheck
Scope: Computer Configuration
Supported on: At least Windows Server 2012, Windows 8 or Windows RT
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: System › Access-Denied Assistance

Registry

EnableShellExecuteFileStreamCheck

REG_DWORDComputer

HKLM\SOFTWARE\Policies\Microsoft\Windows\Explorer Current key

Enabled value: 1

Apply with .reg · CMD · PowerShell

Enabled

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Explorer]
"EnableShellExecuteFileStreamCheck"=dword:00000001

CMD · Enabled

reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Explorer" /v "EnableShellExecuteFileStreamCheck" /t REG_DWORD /d 1 /f

PowerShell · Enabled

New-Item -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer' -Name 'EnableShellExecuteFileStreamCheck' -PropertyType DWord -Value 1 -Force | Out-Null