Why won't my mic work?

About a week ago I had a data breach on my laptop. Fortunately, the hackers couldn’t get anything because I used Bitafinder. I did a couple scans to see what the issue was. Later, I was playing Fortnite with my friends and my mic stopped working. I could hear my friends talk but I couldn’t talk. When I went on discord my mic wasn’t working on there either. checked my settings and my mic was on but it wasn’t working. I tried my built in mic and a mic on my earbuds. Both didn’t work. I have no Idea what to do. Can someone help!?