System security removal?computer experts? Help?

This program called system security is blocking everything on my computer even the Internet.I even tried launching malwarebytew to remove it and it's blocking that.it's says warning the following task cannot be executed.what can I do to get rid of that and also this progam called malwareremovalbot is... show more This program called system security is blocking everything on my computer even the Internet.I even tried launching malwarebytew to remove it and it's blocking that.it's says warning the following task cannot be executed.what can I do to get rid of that and also this progam called malwareremovalbot is forcing me to pay to get my computer back to normal but I'm not paying.please help?
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