That person had another MySQL service running, so it had alreay grabbed the 3306 port.
Best not run 2 MySQL servers on the same machine at least until you become an expert.
So you just uninstall the other MySQL Server.
This happens usually when someone find wamp after trying to Do It All Themselves and failing, or some other product/tool they have installed also installs a MySQL Server.
Be careful, and make sure you are not actually using the other MySQL before uninstalling it.
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-