Hi,
Thank you for posting in Microsoft Community.
I can understand the inconvenience caused, be assured that we are here to help you with your concern.
Ideally it should be 12 but again it depends on the hardware in this case might be his display card drivers that is not able to support the 12 version of Direct X.
I also suggest you to update all the pending Windows Updates and check if it helps
If the issue persist. I suggest you to uninstall and reinstall the drivers in Compatibility mode and check if it works:
Follow the steps to uninstall the driver:
1. Press Windows Key + X key.
2. Click on Device Manager.
3. Right-click on the Sound drivers listed and click on ‘Uninstall’.
4. Select the option to Delete driver software.
5. Restart the computer after its uninstalled.
Now download the drivers the manufacturer website and install it in Windows 8.1 compatibility mode. Follow the steps provided below to install the drivers in compatibility mode:
1. Right-click on the driver setup file and click on ‘properties’.
2. Click on the ‘compatibility’ tab and check the box "Run this program in compatibility mode for” and select Windows 8.1 operating
system from the drop down.
3. Click on ‘Apply’ and click ‘OK’ and run the file to install it.
Hope this information helps. Reply to the post with updated status of the issue so that we can assist you further