WPD Upper Class Filter Driver (WpdUpFltr) Service Defaults in Windows 8

WPD Upper Class Filter Driver.

Default Settings

Startup type:Manual
Display name:WPD Upper Class Filter Driver
Service name:WpdUpFltr
Service type:kernel
Error control:normal
Group:PnP Filter
Path:%SystemRoot%\System32\drivers\WpdUpFltr.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WpdUpFltr

Default Behavior

The WPD Upper Class Filter Driver service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If WPD Upper Class Filter Driver fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the WpdUpFltr service hasn't been started.

Restore Default Startup Configuration for WPD Upper Class Filter 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 WpdUpFltr start= demand

3. Close the command window and restart the computer.

The WpdUpFltr service is using the WpdUpFltr.sys file that is located in the %WinDir%\System32\drivers folder. If the file is corrupted or deleted, you can put it back in there.