Hello! Most of the time this happens because when you open a website, an advertising URL will automatically open. For example, when you open an irregular video URL, the website will pop up a hidden game promotion screen (more common recently), and some are for music promotion... Promotions after the video ends can also appear!

If there are still some sudden sounds after closing all programs, disable all randomly started programs, and then restart those strange sounds and the strange sounds will disappear. This situation is not necessarily poisoning, it may be you. There are prank plug-ins in your own things. After disabling them, you can add some commonly used anti-virus software to random startup.