To connect a headset to a PC, first determine if your headset is USB, 3.5mm audio jack, or wireless (Bluetooth). For USB or 3.5mm headsets, simply plug them into the corresponding port on your PC. For Bluetooth headsets, enable Bluetooth on your PC, then put your headset in pairing mode. Navigate to the Bluetooth settings on your PC, find your headset in the list of available devices, and select it to establish the connection.