1. Connecting a microphone
Connect a microphone to the computer.
2. Enabling the microphone in your operating system
A common error is that the microphone is disabled in your operating system.
Right click on the Volume icon in the taskbar and select "Recording Devices".
Right click on the microphone and make sure that the mic is enabled.
If the mic does not show right click and select "Show Disabled Devices" and enable your mic.
Then, click on the microphone and click "Properties".
And then, select "Listen" and click on "Listen to this device" and Apply it.
3. Hear your own voice when singing
Right click on the Volume icon in the taskbar and select "Playback Devices".
Right click on "Speakers" and click "Properties" and select "Levels". Unmute the level. Now you should hear the microphone sound in your speakers.