Portable Device Enumerator Service (WPDBusEnum) Defaults in Windows 7

Enforces group policy for removable mass-storage devices. Enables applications such as Windows Media Player and Image Import Wizard to transfer and synchronize content using removable mass-storage devices.

Default Settings

Startup type:Manual
Display name:Portable Device Enumerator Service
Service name:WPDBusEnum
Service type:share
Error control:normal
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%SystemRoot%\system32\wpdbusenum.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WPDBusEnum
Privileges:
  • SeAuditPrivilege
  • SeChangeNotifyPrivilege
  • SeCreateGlobalPrivilege
  • SeCreatePermanentPrivilege
  • SeImpersonatePrivilege

Default Behavior

Portable Device Enumerator Service is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the Portable Device Enumerator Service is started, it is running as LocalSystem in a shared process of svchost.exe. Other system components, such as drivers and services, may run in the same process. If Portable Device Enumerator Service fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the WPDBusEnum service is not running because of the error.

Dependencies

Portable Device Enumerator Service is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.

Restore Default Startup Configuration for Portable Device Enumerator Service

Before you begin doing this, make sure that all the services on which Portable Device Enumerator Service depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config WPDBusEnum start= demand

3. Close the command window and restart the computer.

The WPDBusEnum service is using the wpdbusenum.dll file that is located in the %WinDir%\system32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.