Microsoft Support Diagnostic Tool: Restrict tool download: registry value DownloadToolsEnabled and 1 moreComputerHKLM\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}

Policy ID: MsdtToolDownloadPolicy
Scope: Computer Configuration
Supported on: At least Windows Vista
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: System › Troubleshooting and Diagnostics › Microsoft Support Diagnostic Tool

Registry

DownloadToolsEnabled

REG_DWORDComputer

HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5} Current key

Enabled value: 1
Disabled value: 0

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}]

; Options (use only one)
; Enabled
"DownloadToolsEnabled"=dword:00000001
; Disabled
"DownloadToolsEnabled"=dword:00000000

CMD

:: Options (use only one)

:: Enabled
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}" /v "DownloadToolsEnabled" /t REG_DWORD /d 1 /f
:: Disabled
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}" /v "DownloadToolsEnabled" /t REG_DWORD /d 0 /f

PowerShell

# Common: create the key
New-Item -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}' -Name 'DownloadToolsEnabled' -PropertyType DWord -Value 1 -Force | Out-Null
# Disabled
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}' -Name 'DownloadToolsEnabled' -PropertyType DWord -Value 0 -Force | Out-Null

DownloadToolsLevel

REG_DWORDComputer

HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5} Current key

Enabled value: Depends on the option value
Element: Tool downloads allowed

Options
Item	Stored value
Remote troubleshooting only	1
Local and remote troubleshooting	2

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}]

; Options (use only one)
; Remote troubleshooting only
"DownloadToolsLevel"=dword:00000001
; Local and remote troubleshooting
"DownloadToolsLevel"=dword:00000002

CMD

:: Options (use only one)

:: Remote troubleshooting only
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}" /v "DownloadToolsLevel" /t REG_DWORD /d 1 /f
:: Local and remote troubleshooting
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}" /v "DownloadToolsLevel" /t REG_DWORD /d 2 /f

PowerShell

# Common: create the key
New-Item -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}' -Force | Out-Null

# Options (use only one)
# Remote troubleshooting only
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}' -Name 'DownloadToolsLevel' -PropertyType DWord -Value 1 -Force | Out-Null
# Local and remote troubleshooting
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI\{C295FBBA-FD47-46ac-8BEE-B1715EC634E5}' -Name 'DownloadToolsLevel' -PropertyType DWord -Value 2 -Force | Out-Null