computer does not see "E" drive (my DVD)

Well, thanks for the suggestion, but I ended up contacting Microsoft online support. I had to let them take control of my computer. First thing he went to was my registry file, and I guess what he suspected turned out to be the culprit. He backed it up the file first, then made a couple changes, we rebooted, and all was fine! I have NO IDEA what program or file made changes to my registry that caused this drive to disappear, but the drive worked a couple days earlier, and the only thing that changed since was the download of Vista and Office 2007 upgrades (there were 7, I think, most were critical, a couple were recommended). I have my computer set to automatically download updates; however, I do not let the installations take place without my review of the files list first. I've never had a problem before. I find it very hard to believe that a Microsoft file made changes to my registry that would cause a drive to "disappear". I guess I'll never really know what happened. I do keep my computer well-protected via certain security settings and virus and firewalls and pop-up blockers, etc.

Jezebel3705 at 2007-10-3 >

Thanks,
kamal

adventure62 at 2007-10-3 >

hi guys,

i got the same problem

like 1 month ago, i was using the driver well, someday later i downloaded some update from windows then i found out the driver is connected (the light on the drive works) but i just cant find the drive in my computer.

and what is pxhelp20.sys? the driver says that it is not digitally signed.

can any1 plz help me,

i have spent 2 hours looking for microsoft online support but could not find it, plz can some1 send me the link?

jjkul1 at 2007-10-3 >

I'm having the same problem. I just installed Vista Business 3 days ago and I have been installing software and suddenly my CD drive and my DVD drive both disappeared.

I did the registry thing described earlier. But when I navigate to the key

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

(using 11CE instead of the 11-CE in the instructions) I find 4 folders listed

1) 0000

2) 0001

3) 0002

4) Properties

The upper and lower filter parameters did not list on 0000, 0001, and 0002 and I got an "Access Denied" error on the properties and I'm running as the administrator.

Does any one else have any ideas what is happening here? If someone has all the registry entries needed for this key I could try deleting the key and re-creating it. I don't have a backup yet as I have been loading the basic software I wanted. I have a backup of the registry but only after the CD and DVD disappered.

This is a pretty serious error to have your CD and DVD disappear. Other things that go wrong are isolated but no CD or DVD just stops you in your tracks whether you are reinstalling software or into multimedia.

Thank you for your help.

Brian

BrianMorris at 2007-10-3 >

People... This is for Windows Vista Home Premium

BUT TRY TO DO IT ON YOUR WINDOWS VISTA VERSION, TOO.

EVERYONE, INCLUDING ME, HAS TO CREATE A RESTORE

POINT BEFORE DOING THIS, OKAY? So that if it does not work,

you will be able to restore your computer to an earlier date;

a date before doing this.

I called Microsoft and they guided me through a process as follows:

1) Click the WINDOWS START BUTTON

2) Click over the Windows START BUTTON, there is the SEARCH engine.

Click there and search for regedit

3) Click regedit and the Registry Editor folder will open

4) On the left menu, in order to make the folders drop down, click

the following folders with an arrow as follows:
HKEY_LOCAL_MACHINE, then,

SYSTEM, then,

Control, then,

Class, then look for {4D36E965-E325-11CE-BFC1-08002BE10318}

5) On the right side of this folder, you will see some files (probably

with a small "ab" on a little paper which is an icon). Look for

LowerFilter and right-click it and DELETE IT. Yes, delete the file!

Don't worry if you think it could damage your computer system

since, HOPEFULLY, you have already created a Restore Point

for your system.

6) After deleting the LowerFilter file from your system,

RESTART your computer.

7) Look for the CD/DVD drive and WOW, BACK TO NORMAL !

hehehe... I hope this helps you all!

Take care!

canadion at 2007-10-3 >

Hi.....New here...and new to trying to fix my own computer.

I think I got a virus/worm or something... Anyway, XP kept trying to start - over and over - and would just shut down...computer would stay on, but not respond to on/off switch or 'restart'. I would have to unplug the computer and turn it back on... Rarely XP would start up, but the monitor would go black and become unresponsive again after a few minutes.

I formatted and installed xp again - and again...and again.

Finally, I am up, have all the Windows updates, Windows Defender and Avast Virus Protection.

Now Device Manager doesn't show my dvd/cd-rw/r or my cd. The light on the cd drive stays on all the time, but won't read anything at all - data or music. The dvd-rw-r is totally unresponsive.

Now I am even more stumped. Any ideas for me? I did do a registry check recommended by Windows - and all was as it should be. I have no clue what to do next...can someone please help me out?

ps...I hope when/if I shut XP down it will start up again for me. The good thing, for the last week, the computer screen would go black and become unresponsive after a few minutes....today (9/11/2007) is the first time (since all updates and protections) that the computer stayed on nine hours (so far) and is still working. Charter is my internet provider....I could not get their Secutiry Suite to work for me....most likely because I did something wrong. I was a Yahoo! girl for years before Charter and all was well.

9/12/2007 - I am still up and running.... ), but cd or dvd drives showing yet.

Thanks !!!! Peggy

AllAloneOutHere at 2007-10-3 >

i had that problem so i clicked start run E:/ now it shows in my computer

l80n at 2007-10-3 >