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 of 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 C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 8 installation media.