Serenum Filter Driver Service Defaults in Windows 8

Serial Port Enumerator by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Serenum Filter Driver
Service name:Serenum
Service type:kernel
Error control:normal
Group:PNP Filter
Path:%SystemRoot%\System32\drivers\serenum.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Serenum

Default Behavior

The Serenum Filter Driver service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Serenum 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 Serenum service hasn't been started.

Restore Default Startup Configuration for Serenum 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 Serenum start= demand

3. Close the command window and restart the computer.

The Serenum service is using the serenum.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.