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Having a problem with Shelblock or just want to learn more about ad blocking software? Our frequently asked questions are here to answer the questions you ask us most often. If you are wondering if Shelblock secures your data, if it is an antivirus or if the tool can be used on your operating system, click on the corresponding topic to find out the answer! For any other request concerning Shelblock and its services, you can otherwise contact us through our contact form.