AdwCleaner has been around for years and was purchased by Malwarebytes a couple of years ago. It's useful.
However.
Always get programs from the source if possible: in this case
https://www.malwarebytes.com/products/.
Rather than relying solely on McAfee you'd do well to install Malwarebytes Antimalware for realtime protection. It can be used alongside an antivirus product (although there is some overlap). It's great. The premium version is to my mind worth it, although the free version is very good too (and I used it for years). The product page I linked about includes all of these in addition to AdwCleaner.