If you fall into the third category, note that Malwarebytes has honored legacy lifetime keys for versions 4 and 5 if you contact support. Do not cling to version 2.2.1 out of stubbornness—you can use your key on modern software.
By installing Malwarebytes Anti-Malware Premium 2.2.1.1043 build 46, users can enjoy numerous benefits, including: Malwarebytes Anti-Malware Premium 2.2.1.1043 46 Setup