A free, lightweight, and portable utility specifically designed to remove adware, browser hijackers, and potentially unwanted programs (PUPs).

Regarding the specific version "v2.2.1", it appears to refer to a relatively older version of Malwarebytes Anti-Malware Premium. While it's still a functional version, it's crucial to keep in mind that:

Older builds often consume less RAM, making them attractive for reviving older hardware. The Risks of Using Repacked Security Software