When you install the RealTek HD Drivers you have to run the Installer
as many times as it takes to revert back to the Standard MS driver
and then one more time to get the new driver installed. So if someone
has been using Windows Updates or System Maker driver updates
they may have to run the RealTek driver 4 or 5 times before the new
driver is used. When I first ran one on my Laptop it went backward
5 times before the new driver showed up.

I have not seen any other driver with this behavior.

"Rojo Habe" wrote in message
...
After installing SP2 I noticed that Windows had replaced my Realtek HD
Audio driver with its own older version. It also now appears twice in the
Device Manager; I can remove one of them with no ill effects but it is
redetected at next boot and reinstalled.

So I removed both of them, installed the latest Realtek driver and
rebooted. Now I still have two instances - one (called Realtek High
Definition Audio) with the Realtek driver and the other (simply called
High Definition Audio Device) with the Microsoft drivers. If I force the
Microsoft one to use the Realtek drivers it crashes horribly with a BSoD
(so I won't be doing that again!).

Once again I can remove the Microsoft one with no ill effects but it's
redetected and installed again on the next boot.

Something in my memory tells me I always had two entries under 'Sound,
Video and game controllers' but the second one wasn't called "High
Definition Audio Device" and the Driver Provider was Realtek, not
Microsoft. Trouble is, I can't remember what it was called, or what it
was for.

Anybody help? I could always do a System Restore to pre-SP2 and find out
that way but it's probably worth finding out here first whether I'm
worrying about nothing or not. It seems I've got two components of the
same chip with drivers from different releases.