In conclusion I have already tried to install the drivers you recomanded. So, being used not to get anything from producer, I started as always, to install a fresh version of WIN 7and to find my drivers.first, of course from HP site. I bought this laptop brand new and it came empty as a bottle. Thank you very much for your quick answer ! It is true I didn't said anything about the OS. Business PCs, Workstations and Point of Sale Systems.Printer Wireless, Networking & Internet.DesignJet, Large Format Printers & Digital Press.Printing Errors or Lights & Stuck Print Jobs.Notebook Hardware and Upgrade Questions.