White Noise When Recording

I am VERY new to this program and am doing a podcast for a class. After I record on my laptop, I play it back and hear a loud white noise playing along with my voice. I have used the built in microphone and I have also purchased a plug in microphone. The white noise is still there. Any suggestions? Thank you

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And the forum. Since you didn’t post in a portion of the forum that automatically tells us stuff about your computer, you’ll have to do it now. Mac? DeskSide? Linux? I’m going out and buy your computer. What do I buy?

Koz