GreyStar

I made what you suggested but the path is already present. Could it be a matter of access permissions?

Italian HP customer care solved my problem. I wrote them my problem and they asked me so: 1) go in the peripherals list, My Computer->Manage 2) right-click on the unknown peripheral 3) select Update software driver 4) specify the path C:\Windows\system32 I thought they were joking, because windows usually scan system32 automatically to find a driver for the device, and I even tried to tell the system to scan whole HDD for a driver in the past and nothing was found. Now I tried what HP suggested me and... it happened, my pendrive has been found and installed correctly! I don't know what to say, that ridiculous, a ridiculous Windows bug! Now the only thing I must discover is how to tell the system to scan system32 directory automatically... someone knows?

In my BIOS there's nothing about USB peripherals, and I don't think that USB is the problem itself, because even SD and MMC cards suffer the same problem, only one works, the one used when everything was ok, all the others don't. So, it's a Windows Vista problem because he can't recognize any new peripheral, or better he recognize them (if I put a pendrive he tells me that is a flash drive, if I put a SD card he recognize it as a SD card) but doesn't want to let them run, telling that no drivers was found. Yesterday I flashed my BIOS with a new version but nothing has changed...

I've tried everything in the previous pages and nothing solved my problem. It's very strange that the problem is present even on Windows XP, I thought that it was a Windows Vista bug... well, I hope Microsoft will do something for us, I payd the OS (it was pre-installed on the laptop) and I want to use it at all, not only with old peripherals... Bye

I don't think that replacing my motherboard will resolve my problem. As I sayd, all works as well under Linux, so motherboard has not any problem...

Hi, I'm an italian guy who is experiencing the same problem as you. I bought a HP DV6276EA Laptop a couple of months ago and in the first one I never had problems with my usb peripherals. After the first month, all new peripherals results as Unknown Devices, but the ones used in the past still work. To check if it's an HW or SW problem, I download the Linux Knoppix 5.1 Live CD and booted my PC under Linux, and all peripherals works without any problem. So, I exclude that, in my case and in the one similar to mine, it could be an hardware problem or a problem caused by the notherboard, it's just a bug of Windows Vista, so we must wait for a fix. PS. Fix 925528 doesn't work on my system. PS2. Sorry for my poor english...