User Mode Driver Frameworks Platform Driver (WudfPf) Service Defaults in Windows 7

Windows Driver Foundation - User-mode Driver Framework Platform Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:User Mode Driver Frameworks Platform Driver
Service name:WudfPf
Service type:kernel
Error control:normal
Group:base
Path:%SystemRoot%\system32\drivers\WudfPf.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WudfPf

Default Behavior

User Mode Driver Frameworks Platform Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If User Mode Driver Frameworks Platform Driver 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 WudfPf service is not running because of the error.

Dependencies

If User Mode Driver Frameworks Platform Driver is stopped, the Windows Driver Foundation - User-mode Driver Framework service fails to start and initialize.

Restore Default Startup Configuration for User Mode Driver Frameworks Platform Driver

1. Run the Command Prompt as an administrator.

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

sc config WudfPf start= demand

3. Close the command window and restart the computer.

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