Moved this to Consumer > General.
Technical Support is free of charge by phone or online chat and linked below. That is probably the best way to go at this stage:
But first try running AdwCleaner and Malwarebytes Free in the last link below. To keep the latter free do NOT accept the free trial nor activate it.
Toronto ▪ Canada
Volunteer Moderator - Consumer Products
I CAN'T HELP PRIVATELY - PLEASE POST IN THE FORUMS
Use Advanced Search To Find Answers
As per Peter says also try updating McAfee as this error in the past can be caused by a bad antividus dat or in this version the scanning engine.