Software Bus Driver (swenum) Service Defaults in Windows 7

Plug and Play Software Device Enumerator by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Software Bus Driver
Service name:swenum
Service type:kernel
Error control:normal
Path:%SystemRoot%\system32\DRIVERS\swenum.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\swenum

Default Behavior

Software Bus Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Software Bus 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 swenum service is not running because of the error.

Restore Default Startup Configuration for Software Bus Driver

1. Select your Windows 7 edition and service pack, and then click Download.

2. Save the Win7_swenum_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The swenum service is using the swenum.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.