Yellow exclamation mark in DVD/CD-ROM drives in Device Manager
Nov 08
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.
- On the Windows Start menu, click Run.
- In the Open box, type Regedit and click OK.
- Select the following key in the Windows registry:
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\
{4D36E965-E325-11CE-BFC1-08002BE10318} - On the Edit menu, click Delete:
Value Name: LowerFilters
Value Name: UpperFilters - On the Registry menu, click Exit.
- 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

Worked a treat with Windows 7. Kept having to boot into my XP partition and copy CD content, I was stumped did all the usual troublshooting, removing/updating drivers, checking services etc. Thanks for posting this.
Thank you, it did work for me. Now, itunes told me the drives for burning a cd are not working because of the drivers, maybe this was caused by the deletion process above, I dont know. But, i am happy not to see that exclamation sign.
It Really Works Thanks for the commentment
My daughter is talking to me again after I fixed it
It disappeared when I installed a new epson printer. Worked for me with Windows Vista, worth saying it is important only to delete the upper filter piece of the file, i double checked before deleting and just as well I did because it didnt have the lower filter, so wasn’t sure if I was doing the right action. Worked a treat many thanks
lol
This fix work for XP Sp3
Ok in xp I found Hkeylocal How do I find the specific registry item
Done…………
Thankyou Very Much
thanks guyz it work
you are awesome .
Thanx it works
Seriously amazing advice couldn’t get any of my drives 2 work even making virtual devices didn’t work thank you techbug
it really helps, my friend plan to sell computer on half price because of this trouble.
hi ,
i have tried this and has tried uninstalling and reinstalling the drive, still it does not remove the exclamation mark from DVD drive.
Your remedy worked like a charm! Thanks.
Worked with windows 2003 server enterprise edition . Thank you
I could not beleive it could be so simple …
Works like a charm … Many thanks
Worked for me….awesome…thanks for posting this!!!
Nice…It worked…Thanks
i cant find any upper ffilter or olower filter there
WoW!! I have spent hours on this thing and i come here and it works within 5 minutes! MUCH THANKS!
Worked for me too WinXP SP3
Thanks a ton!