At logoff, delete local copy of user’s offline files: registry value PurgeAtLogoff and 1 moreComputerHKLM\Software\Policies\Microsoft\Windows\NetCache

Policy ID: Pol_PurgeAtLogoff
Scope: Computer Configuration
Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: Network › Offline Files

Registry

PurgeAtLogoff

-Computer

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

PurgeOnlyAutoCacheAtLogoff

REG_DWORDComputer

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

Checked: 1
Unchecked: 0
Element: Delete only the temporary offline files.
Value type: REG_DWORD

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

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

; Options (use only one)
; Checked
"PurgeOnlyAutoCacheAtLogoff"=dword:00000001
; Unchecked
"PurgeOnlyAutoCacheAtLogoff"=dword:00000000

CMD

:: Options (use only one)

:: Checked
reg add "HKLM\Software\Policies\Microsoft\Windows\NetCache" /v "PurgeOnlyAutoCacheAtLogoff" /t REG_DWORD /d 1 /f
:: Unchecked
reg add "HKLM\Software\Policies\Microsoft\Windows\NetCache" /v "PurgeOnlyAutoCacheAtLogoff" /t REG_DWORD /d 0 /f

PowerShell

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

# Options (use only one)
# Checked
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\NetCache' -Name 'PurgeOnlyAutoCacheAtLogoff' -PropertyType DWord -Value 1 -Force | Out-Null
# Unchecked
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\NetCache' -Name 'PurgeOnlyAutoCacheAtLogoff' -PropertyType DWord -Value 0 -Force | Out-Null