Acer Aspire 7720,7720G,7720Z, 7720ZG Windows 7 Unknown Device And Base System Device

Drivers for Base System, Hdaudio(high definition audio bus) and Acpi Unknown Device for Acer Aspire 7720, 7720G,7720Z,7720ZG :

Base system device
»Card reader w7

Hdaudio unknown device
»Modem liteon

Acpi unknown device
»MIR driver w7

Tq...