Tip & How-To about Computers & Internet

What to do when your upper & lower filter are missing

If your cd/dvd drive wont read or right and your upper & lower filters are missing then click on the link below it will take you to a microsoft support page that you will have the option to clcik on an icon and have your problem fixed by itself.

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Missing the upper and lower filters in CD-RW registry

Hi, listen I am going to give you a link that will help you fix it. its from microsoft. i can tell you how to do it manually but you might get lost,lol. heres the link and dont forget to let me know if i have been helpful

Mar 02, 2010 | Acer (4432A-002) CD-RW Burner

1 Answer

get insert disc into drive D when the disc is in reads CD;s but not DVD's

Method 1 :

If your drive reads cd's, but not dvd's That indicates that the hardware works fine. You will need to edit the registry inorder to fix this problem.

1) click the start menu
2) click on "run"
3) type "regedit" and click ok
4) go to string key "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
5) delete "upper filters" and "lower filters in the right side window.
6) right click my computer in the start menu.
7) click properties
8) go to the hardware tab
9) click device manager
10) expand the dvd/cdrom drives
11) right click the dvd rom and click uninstall
12) restart computer 

after restarting, windows should automatically install a clean ROM drive and it should read DVDs just fine if you have the correct DVD decoders.

check if it works fine or else Try Method 2.

Method 2 : Just go the link below


and select the Operating system and double click on "CD/DVD"

and download the firmware updates according to your CD-DVD drive Comapny and installed it.

Most probably it will solve your Problem.

Rate this Solution.

Jan 03, 2010 | Microsoft Inspiron Notebook

1 Answer

My cd/dvd drive will read dvd's, but will not read cd's.

Hi there,

Try to follow the link below and delete the upper and lower filter from registry :




Oct 20, 2009 | Dell Inspiron 530 Desktop Computer

2 Answers

dvd drive in dell does not work

depending on the drive it can be your upper and lower registry filters, use this link at your own risk and whenever you work in regedit, make sure you create a recovery point before hand!


Apr 03, 2008 | Computers & Internet

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