Your Profile says you use an Enteprrise product, can you clarify what McAfee software it is please?
Try running AdwCleaner and Malwarebytes Free from the last link below and note to keep the latter free do NOT accept the free trial. Also I suggest running Hijackthis obtained from lower down that link and post it's log on one of the specialized forums mentioned there.
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I moved this to Malware Discussion > Home User Assistance as I think that is the correct area for your post.