Might have been a driver download from Microsoft Update possibly? Or
possibly CD/DVD writing software that installed a driver that caused
problem?
Bottom line is that you can't be sure it's Microsoft's problem...it may be a
software vendor's issue with an app you installed. A good start might be to
list your drive model and the 3rd party apps you are using, especially those
that deal with writing to CD/DVD.
Something messed up the driver...if it was working fine before then it had
to be something you installed since it was working....or at least that's the
only thing I can think of besides an unlikely hardware failure itself.
Jeff
"Robert G" <Robert
G@discussions.microsoft.com> wrote in message
news

45B001D-B5BA-428D-AAC5-D6FDB962205A@microsoft.com...
> Running Vista RTM for a week. Now both of my DVD/CD drives are no longer
> showing up as drives in Windows explorer. In device manager they both
> show
> with a Yellow ! sign and the status message "Windows cannot initialize the
> device driver for this hardware. (Code 37)". I have tried uninstalling
> the
> drivers and searching for new drivers. Each time I get the same results.
>
> I ran the "Check for solution" optons and submitted data to MS but no
> reply
> so far.
>
> I used these drives during the first few days after installing Vista RTM
> to
> install other software without any problems. I do not know at what point
> they cease to exist.