: Unauthorized keys are often legit keys resold many times, which eventually results in them being blacklisted for abuse.
If you have a legitimate license key, you can update it directly within the software without needing to reinstall:
: Log in to the Malwarebytes My Account portal to view your subscription details.
: Click Change or Change License Key , then enter your legitimate key (including hyphens and capitalization) and click Activate . Where to Find Your Legitimate Key
: Launch the application on your Windows or Mac desktop.