Hi ccmcmill12,
Follow the below mentioned steps and check the results:
a. Click on the "Start" button
b. Click on "Control Panel"
c. With the Control Panel in "Control Panel Home" view please click on "Hardware and Sound"
d. Where it says "Sound" in green letters there are three options below that are in blue click on "Manage Audio Devices"
e. This will bring up a window labeled "Sound"
f. On the "Playback" tab there is listed the sound options available to you. One should read "Digital Output Device (HDMI)" Click on that.
g. There should now be a check mark on that option.
h. The Sound should then play through your HDMI hookups to the TV.
Regards:
Samhrutha G S - Microsoft Support.
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