Probably this is a false positive. Run malwarebytes and update database. Once is done, try to open google. If it does not help, then your computer is infected with an adware that injects maclicious code into pages that you surf. To remove adware please follow the steps http://www.myantispyware.com/2017/02/19/how-to-remove-pop-up-ads-chrome-firefox-ie-opera-edge/ .
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