Moved to Artemis Discussions, That depends on what it is. Artemis is the generic name given to unknown detections.
If you know what it by looking in the Quarantine folder (Open SecurityCenter > Navigation > Quarantined and Trusted Items) and it is false then read here: What To Do When McAfee Detects Software As An Infection - How to Submit To McAfee Labs & Appeal
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This file has been analysed and confirmed to be a legitimate detection, it is related to an Adware Browser Helper Object.