Most of the drivers have been installed and everything is working except for bluetooth. in that process i lost all the files i had on my pc hard drive and had to reinstall all the drivers again. Hello, I have HP Envy 15 j140na laptop and i recently did a clean install of Windows 7, downgraded from Windows 10. 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.