I had several Unknown Device messages every time I started Vista, even though
all devices were working correctly. The solution I found was to work through
the Found New Hardware wizard until the prompt to specify a folder to search.
Use "C:\Windows" here (or wherever Vista is installed), and make sure to
search sub-directories as well. This solution found drivers for all my
devices, and also helped me install a new USB Printer!

"markm75" wrote:

> I have a few "unknown devices" which result in the prompt at Vista
> startup to find their drivers..
>
> If I choose the option: dont show this message again for this device
>
> On the next reboot it asks once again...
>
> Anyone know of a fix?
>
> Thanks
>
>