If you are using Skype and you have a Asus Xonar DX sound card in your PC you might get this error while shutting down Microsoft Windows. This error is caused by “Asus Xonar DX Audio Center” software.
The fix for this problem is to install the sound card driver without the “Asus Xonar DX Audio Center” software.
1. Uninstall the Asus Xonar DX driver and restart Windows.
2. Download the sound card driver from https://www.asus.com/support and extract to desktop.
3. Open “Device Manager”, right click on “Multimedia Audio Controller” and select “Update Driver”.
4. Select to install the driver manually, browse for driver folder and click next, your sound card will be installed without “Asus Xonar DX Audio Center” software.