Right-click the "Unknown Device" (ACPI\NSC6001) and select .

Extensa 7620 - IrDA Fast Infrared Port Driver for Acer - DriverIdentifier

Before attempting fixes, confirm the device is truly problematic.

Acpi Nsc6001 -

Right-click the "Unknown Device" (ACPI\NSC6001) and select .

Extensa 7620 - IrDA Fast Infrared Port Driver for Acer - DriverIdentifier

Before attempting fixes, confirm the device is truly problematic.