Try this solution !!!

USB Drive Problems with Vista
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I believe that possibly during Vista installation, usbstor.inf (inf that
installs "USB Mass Storage Device") got corrupted or got accidentally deleted
from c:\Windows\inf. When usbstor.inf was restored to c:\Windows\inf and the
system was rebooted, the drives mounted normally again when the device is
plugged in.



There are two ways to get the usbstor.inf file

1. From another Vista system (copy it out of another Vista system and copy
it directly into the C:\Windows\inf directory)

2. If you only have 1 Vista system, run Command Prompt (Run as
administrator). From C:\ do a dir usbstor.inf /s . Wherever the file is
found, copy it to the C:\Windows\inf directory if it is missing from it. (I
remember it being in the driver store cache somewhere on the HDD)

Regards,

Rob



"Andifoz" wrote:

this looks like its for XP Uwe - before I go there, does it work for Vista too?

"Uwe Sieber" wrote:

Andifoz wrote:
Hi
I have just bought a new Vista Business laptop. Every flash card I insert
into my USB ports does not work. It says it has to install driver software
then searches. It then asks me to insert a disc, but as flash drives don't
come with a disc it fails to install the flash drive and I am unable to use
it. I have searched producer sites (eg Sandisk) to download drivers but they
don't seem to exist as the whole point is that they are plug and play.
Beginning to wish I could have XP back, but want to persist! Any suggestions
on how to get memory sticks to plug and play?

Sounds like this:
http://www.uwe-sieber.de/usbtrouble_...ks_for_drivers