Diagnostics: Configure scenario retention: registry value DataRetentionBySizeEnabled and 1 moreComputerHKLM\SOFTWARE\Policies\Microsoft\Windows\WDI

Policy ID: WdiDpsScenarioDataSizeLimitPolicy
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

Registry

DataRetentionBySizeEnabled

REG_DWORDComputer

HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI 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]

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

CMD

:: Options (use only one)

:: Enabled
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI" /v "DataRetentionBySizeEnabled" /t REG_DWORD /d 1 /f
:: Disabled
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WDI" /v "DataRetentionBySizeEnabled" /t REG_DWORD /d 0 /f

PowerShell

# Common: create the key
New-Item -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI' -Name 'DataRetentionBySizeEnabled' -PropertyType DWord -Value 1 -Force | Out-Null
# Disabled
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI' -Name 'DataRetentionBySizeEnabled' -PropertyType DWord -Value 0 -Force | Out-Null

DirSizeLimit

REG_DWORDComputer

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

Enabled value: Depends on the option value
Element: Scenario data size limit (in MB)
Value type: REG_DWORD
Required: true

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WDI]

; Value names and types follow the ADMX. Replace <enter value> below with your own data
"DirSizeLimit"=dword:<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\WDI" /v "DirSizeLimit" /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:\SOFTWARE\Policies\Microsoft\Windows\WDI' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WDI' -Name 'DirSizeLimit' -PropertyType DWord -Value '<enter value>' -Force | Out-Null