Go to Control Panel and click on the Sound folder. Click on the "Recording" tab. Test and adjust your microphone settings to allow for a proper recording level.
Download and install a freeware music recording program, such as Audacity or GoldWave (see Resources).
Open the freeware music recording program. Click on the "Record" button. Sing and/or play an instrument near your computer.
Click on the "Stop" button. Click on "File," "Save." Enter the title of your song and save it.