CD-ROM Driver (Cdrom) Service Defaults in Windows XP

SCSI CD-ROM Driver by Microsoft Corporation.

Default Settings

Startup type: System
Display name:CD-ROM Driver
Service name:Cdrom
Service type:kernel
Error control:normal
Group:SCSI CDROM Class
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdrom

Default Behavior

CD-ROM Driver is a kernel device driver. In Windows XP it is starting right at Kernel initialization. If the CD-ROM 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 Cdrom service has failed to start.


CD-ROM Driver depends on the following system components:

The Cdfs depends on the CD-ROM Driver service.

Restore Default Startup Configuration of CD-ROM Driver

Before you begin doing this, make sure that all the services on which CD-ROM Driver depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt.

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

sc config Cdrom start= system
sc start Cdrom

3. Close the command window and restart the computer.

The Cdrom service is using the cdrom.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.