Windows 7 Stereo Mix

If you want to record whatever it is playing on your computer, there is a simple way to do it.

• Right click on the "Speakers" from the Task Bar 
• Select "Recording devices"
• Right click in the tab and check "Show Disabled Devices" (if it is not checked)
• Right click on "Stereo Mix" and select "Enable"

Use any recording software such as Audacity and select "Stereo Mix" as your input device.