before proceed with the steps to solve your problems make sure you check the ID, the ID for dv7 i have is ACPI/HPQ0004 so it is the:
ProtectSmart Hard Drive Protection
Download
this will solve 3 unknown device and the other one left is:
HDD protection feature:
Download
A-Note Drivers Acer Drivers Alienware DriversApple DriversAsus Drivers-BenQDrivers Clevo Driver Compaq Drivers Dell Drivers DTK Drivers HCLDriver How-To HP Drivers Lenovo Drivers LG Drivers Medion Driver MSI Drivers NEC Drivers nVidia Drivers Packard Bell DriversPositivo Drivers SaharaSahara KN7 Samsung Drivers Single Driver Sony Vaio Toshiba Drivers
ProtectSmart Hard Drive Protection
Download
this will solve 3 unknown device and the other one left is:
HDD protection feature:
Download
A-Note Drivers Acer Drivers Alienware DriversApple DriversAsus Drivers-BenQDrivers Clevo Driver Compaq Drivers Dell Drivers DTK Drivers HCLDriver How-To HP Drivers Lenovo Drivers LG Drivers Medion Driver MSI Drivers NEC Drivers nVidia Drivers Packard Bell DriversPositivo Drivers SaharaSahara KN7 Samsung Drivers Single Driver Sony Vaio Toshiba Drivers