In order to fix the issue, I suggest you update your audio drivers. Navigate to the official web page, check the I accept to the above box, click Next, select your operating system and the desired file format and click on UK1, US1, CN, US2, US3 or HK1 link from the end of the table. After that, save the file to your computer, right-click on the My Computer/Computer icon, select Manage and open Device Manager. Expand the Sound, video and game controllers list, right-click on the driver and select Update Driver Software. Use the Browse option to navigate to the downloaded package, select the driver and install it following the on screen instructions. Next, right-click the taskbar, select Properties and click the Customize button from the first tab. Press Turn system icons on or off and then select On from the drop-down menu next to Sound icon.