Dmboot Service Defaults in Windows XP
NT Disk Manager Startup Driver by Microsoft Corp., Veritas Software.
Dmboot is a kernel device driver. It is disabled and isn't loading or starting in Windows XP Home, Home SP1, Professional SP1, Home SP2, Professional SP2, Home SP3, Professional SP3. This service is starting before Kernel initialization in Windows XP Professional. If the Dmboot 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 dmboot service has failed to start.
Restore Default Startup Configuration for Dmboot
1. Select your Windows XP edition and service pack, and then click Download.
2. Save the WinXP_dmboot_Service_Startup.cmd file to a local storage device.
3. Run the saved file.
4. Restart the computer.
The dmboot service is using the dmboot.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 XP installation media.