title: Why did my free disk space decrease after deleting some rows of a table on MySQL?
body: <p>I deleted thousands of thousands of rows in a table, but the free space in (C:) decreased from 40 Gb to 15 Gb. What happened? Wasn't it supposed to go up?</p>
  
  <p>I've already restarted the MySQL Server and even my computer, but the problem remains. I'm using Windows 10 and MySQL 8.0</p>