Follow these steps: 1. Press Win+X (Windows logo key and X key) at the same time. 2. Select Control Panel in the pop-up menu. 3. View by “Category” and click on Hardware & Sound. 4. Click on Sound. 5. Select Headphones and click Set default button at the bottom. In some cases, there is no headphone option alone but Speakers/Headphone. If that’s your case, select that and click Set default button at the bottom. 5. Click OK button.