Yellow exclamation mark in DVD/CD-ROM drives in Device Manager

Last week, I was troubleshooting a PC. The DVD/CD-ROM drive is not able to be seen in windows explorer. In the device manager, the DVD/CD-ROM drives appear with exclamation mark. The user mentioned he has installed the drivers CD from the manufacturer.

1. On the Windows Start menu, click Run.
2. In the Open box, type Regedit and click OK.
3. Select the following key in the Windows registry:
4. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\
   {4D36E965-E325-11CE-BFC1-08002BE10318}
5. On the Edit menu, click Delete:
   Value Name: LowerFilters
   Value Name: UpperFilters
6. On the Registry menu, click Exit.
7. Reboot your computer.

Sometimes, you may find only one of the Value Name. You can continue to delete it and restart your computer.

New:  20/03/2009 or I’m slow.  Microsoft posted a new article to fix for Windows Vista.
http://support.microsoft.com/default.aspx/kb/314060