The workshop was quiet, except for the low hum of an old Acer Aspire E1-471. On the screen, a familiar, frustrating sight: a yellow exclamation mark next to "Unknown Device" in the Device Manager
Note: You must do this every time you install new unsigned drivers, but the drivers will remain functional after subsequent normal boots. Miracle Driver Installation 1.00 64 Bit Windows 7
Select and press Enter .