Even after formatting, RAT did not go away.

[puddinpops]

Hello, a week ago a RAT infected my computer and took control of all my passwords. Even though I reset the computer and changed the passwords, I still suspect that it might be on the computer. Sometimes someone tries to log in even after I change my email password. I used the 'reset this PC' option that appeared when I searched for reset in the search bar. Is there a way to identify or clean the RAT that I can understand? I have a paid antivirus program, the name is TrendMicro Maximum Security. When I do a full scan with it, it says there are no viruses on the computer. But I am not sure. Can you help me?

If I run a full scan with the Microsoft Windows Malicious Software Removal Tool, would it detect it?