PUP.Optional.Legacy is a generic detection name by AdwCleaner for potentially unwanted programs (PUPs) that have not been classified by family yet.For more information about these PUP detections, please read our post Malwarebytes gets tougher on PUPs.
Malwarebytes' AdwCleaner can detect and remove PUP.Optional.Legacy
AdwCleaner is a removal tool only, so it does not offer protection. If you want to try out Malwarebytes protection you can use the button in AdwCleaner labelled "Try Malwarebytes Protection Free".
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