Windows Driver Foundation - User-mode Driver Framework (wudfsvc) Service Defaults in Windows 7

Manages user-mode driver host processes.

Default Settings

Startup type:Manual
Display name:Windows Driver Foundation - User-mode Driver Framework
Service name:wudfsvc
Service type:share
Error control:normal
Group:PlugPlay
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%SystemRoot%\System32\WUDFSvc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wudfsvc
Privileges:
  • SeChangeNotifyPrivilege
  • SeAssignPrimaryTokenPrivilege
  • SeIncreaseQuotaPrivilege
  • SeTcbPrivilege

Default Behavior

Windows Driver Foundation - User-mode Driver Framework is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the Windows Driver Foundation - User-mode Driver Framework 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 Windows Driver Foundation - User-mode Driver Framework 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 wudfsvc service is not running because of the error.

Dependencies

Windows Driver Foundation - User-mode Driver Framework is unable to start, if at least one of the following services is stopped or disabled:

If Windows Driver Foundation - User-mode Driver Framework is stopped, the Windows Biometric Service fails to start and initialize.

Restore Default Startup Configuration for Windows Driver Foundation - User-mode Driver Framework

Before you begin doing this, make sure that all the services on which Windows Driver Foundation - User-mode Driver Framework 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 wudfsvc start= demand

3. Close the command window and restart the computer.

The wudfsvc service is using the WUDFSvc.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.