Hi, I'm Robinson, an Independent Advisor and a Windows user like you.
You can use the device manager to install the Microsoft HD audio.
1-Right-click on Start then click on Device Manager
2-Click on Sound to expand
3-Then Right-click on the current driver then click on Update driver
4-Select the option 'Browse my computer for drivers' then select 'Let me pick from a list'
5-If the Microsoft HD audio doesn't show in the list, uncheck the option 'Show compatible hardware' then select Microsoft from the Manufacturer list
5-Then click on Next to install