Sound | General Issues | Windows 10
Summary
Sound issues are a very broad problem that can't always be pinpointed, but most of them are related to Windows sound settings and audio drivers. The troubleshooting steps below are basic enough for users to check, but if you feel you need assistance from your IT department, please mention it in the ticket.
Instructions
You should always start with a reboot to ensure there are no Windows updates that are waiting for a reboot. Sometimes this will cause the computer to misbehave.
Please note that most programs will use Windows audio for sound such as 8x8, Microsoft Teams, or sound in general such as Windows or playing videos.
1. The most obvious setting to look for is making sure your speakers aren't muted. The F1 on a laptop keyboard will MUTE all System Sounds. Check your sound icon in the lower right corner of the taskbar near your system clock.
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Sound
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No sound (Muted)
Right-clicking the sound icon will give you more options.
Click on "Open Volume mixer." In this example. You see there is "no" icon where the sound is. This means the system sound is muted. Click on it to uncheck it.
2. If step one is not the issue, you can right-click on the sound icon 
in the lower-right corner of the screen again and select "Open Sound Settings." You'll notice a drop-down. Please ensure you have "Speakers (Realtek(R) Audio" selected or similar.
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3. If step one and two didn't work, try this final setting. Right-click the sound icon 
and select "Sounds." Ensure you're on the "Playback" tab. Select "Speakers", then click on "Properties in the lower-right corner. In Speaker Properties, go to the "Advanced" tab then go to "Signal Enhancement". Uncheck the box. You can click the Test button above and listen for the test sound. This should resolve your sound issues.
If none of the above actions work, then it's most likely a driver issue. Your IT department will need to remote in and take a look.