Software Bus Driver (swenum) Service Defaults in Windows XP

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
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\swenum

Default Behavior

Software Bus Driver is a kernel device driver. In Windows XP it won't start until the current user starts it. If the Software Bus Driver fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the swenum service has failed to start.

Restore Default Startup Configuration of Software Bus Driver

1. Run the Command Prompt.

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

sc config swenum start= demand

3. Close the command window and restart the computer.

The swenum service is using the swenum.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 XP installation media.