Re: Disappearing DVD drive--not an upper or lower filter issue
- From: <gerryf@xxxxxxxxxxxxxxxx>
- Date: Thu, 14 Aug 2008 09:46:32 -0400
Thank you for your response
1st machine
Yes, the optical drive was functioning before the installation of sp1. During the installation of sp1, the machine hung. He rebooted, Vista came up, but he was uncomfortable with the hang, so he uninstalled sp1.
However, he then REINSTALLED sp1.
It was several days later he noticed that the optical drive was then missing. We are uncertain if it was immediately after the sp1 install that the drive disappeared or not.
Yes, checked the registry as per kb929461--there were no upper or lower filter settings.
We have rebooted in safe mode--no drive
We have removed all burning programs--no drive
All services are set to default settings
Also, recall that the drive works fine with linux live boot disks, so we know it is still working. It is also recognized during hardware initialization when the PC first boots before windows loads. It is also recognized with a windows xp cd we used to load the old recovery console --we did not perform any xp recovery functions on the disk, we just wanted to see if it would see the drive.
We have not performed a VISTA startup repair, however, which is our next step.
I'd go with the drive not being supported by Vista too, if it was not for the fact it worked fine, and an identical drive with identical firmware works fine. This machine is fairly new.
On the second pc, I am fairly convinced this is an HCL issue as the drive was never recognized by Vista, is not on the HCL and the manufacturer is one I have never heard of, though I understand they are owned by sony. The second machine was originally an xp machine upgraded to vista.
As for hardware conflict--wouldn't that appear in device manager if that were so?
There is no evidence in windows anywhere that either drive on either machine exists...nothing in device manager, nothing in event viewer..it is as if there is no drive installed at all.
"George Yin(MSFT)" <v-chanyin@xxxxxxxxxxxxxxxxxxxx> wrote in message news:cwWUZHg$IHA.4792@xxxxxxxxxxxxxxxxxxxxxxxxx
Hello,.
Do you mean that:
On the first machine, the DVD drive disappeared some days after it had been
working flawlessly. However, when you want to install Windows Vista SP1 on
this machine, you found the installation hung.
On the second machine, the DVD drive never appeared after the system was
installed.
You have tried to check the Registry similarly as the steps listed in the
following article but didn't find any upper or lower filters:
http://support.microsoft.com/default.aspx/kb/929461
If I have any misunderstanding, please let me know.
For the first machine:
=============
Firstly, I would like to double check if you or them were doing anything,
like installing programs or enabling services or configuring the system,
when the problem happened.
Would you please try a clean boot to see if it can help? Try uninstalling
all the applications (especially the burning applications) to see how it
goes. Or, try logging into Safe Mode to see how it goes.
However, as you also mentioned that the machine cannot install Windows
Vista SP1, I would suspect that there might be some incompatible
applications are running on that machine. Or, even the hardware do not
support Windows Vista very well.
For the second machine:
===============
From you description, you mentioned that the DVD drive never appeared after
the system was installed, this sounds very like that the hardware is
incompatible with Windows Vista. Specifically, there might be some hardware
conflicts or even the hardware does not support Windows Vista.
For both computers, I would suggest that you contact the hardware
manufacturers to see if the hardware can support Windows Vista and, if they
have any information on this or if they have any updating for the firmware.
Saying this is because, we do have seen many similar problems and most of
them are caused by the incompatible hardware.
Thank you for your cooperation.
Sincerely,
George Yin
Microsoft Online Support
Microsoft Global Technical Support Center
Get Secure! - www.microsoft.com/security
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