The exact options available will depend on the sound hardware in your PC and your manufacturer’s audio drivers. Like Windows 7 before it, Windows 10 offers some integrated microphone options that will help with microphone background noise. Consider muting yourself on the call while you’re not speaking, too. Consider trading out that noisy mechanical keyboard for something quieter while on calls.
Try plugging a dedicated microphone or headset into your PC. Sure, they work, but that’s about all that can be said for them. Before you dig into software features, you should follow some basic best practices for clearer audio recording.