If you are using Internet Explorer, you can reduce the amount of vulnerabilities that it goes through when you are online. I have designed a comprehensive Internet Explorer support guide for you. It will walk you through the procedure step-by-step and educate you what how each setting helps secure your browser.
Open Internet Explorer. Click the Tools menu and select Internet Options from drop-down list. When in the Internet Options window, highlight the Security tab and you will see a list of internet security zone. Click the Internet zone and drag the security zone slider to High. It will be set to Medium by default. Afterwards, click the Custom level tab. You will be in the Security Settings – Internet Zone dialog box. Under Reset custom settings, click the drop-down arrow beside Reset to and select High. It will be set to Medium-High (Default) by default.