I just bought HP 17-ab000nm , no windows OS , so I installed Windows 7 pro (32-bit) SP1 from new retail DVD . No probs there . However , some drivers are missing and those devices are not working , and 2 or 3 devices are not even recognised by device manager . I can not find these drivers anywhere ! Yet HP states that Pavilion 17 is supported Skylike-based system that can run Windows 7 !?