: Crucial for communication between the processor and other hardware.
Open and run:
Open ( devmgmt.msc ). No yellow exclamation marks means success. Test: Wi‑Fi, sound (speakers + mic jack), USB ports, brightness keys, sleep/wake. sony pcg31311l drivers
: Necessary for the internal speakers and headphone jack. Pointing Device : Provides advanced touchpad gestures. : Crucial for communication between the processor and