downgraded to windows 7 and front usb ports don't work!!

Acecarrie

Honorable
Nov 8, 2013
3
0
10,510
I recently downgraded to Windows 7 and now front usb ports are not working. Went through online forums & suggestions - device mgr..look for hardware changes, power, uninstall, update drivers. There are no drivers or information listed for the SM Bus Controller or the Universal Serial Bus (USB) Controller. I called Hp and the tech support said I voided my warranty when I changed my operation system.