Virus software or why does the browser open with ads?

Question

Malware

Hello everyone, recently the chrome browser began to open on its own, followed by redirection to advertising sites. The browser opens every 23 minutes, on other browsers everything is fine. Previously, I had something similar (opened at OS startup), then I found a problem in the registry and deleted it. Now it does not find anything in the registry, plus I used the "adwcleaner" utility, found 47 threats, removed them, but the problem did not disappear. I don’t find any suspicious programs, there’s also nothing superfluous in the browser, plus I reinstalled it.
The first domain that opens in the browser is search-man. Please tell me more options for removing this wickedness.