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Note: You can also click the Start Orb and in the Search Box, type: services.msc To start (enable) a service, press the WINKEY + R keys on the keyboard or click the Start Orb > Run.,Īnd in the Open dialog box, type: services.msc How to activate Windows Defender in Windows 8Īlso check to make sure the Windows Defender 8 service is running (enabled).If not, you will need to manually turn it on. When uninstalling the third-party anti-virus you may receive a message indicated your system has no protection.click here to turn on Windows Defender. Windows 8 Defender will remain disabled until that anti-virus software has been completely uninstalled and then Windows 8 Defender needs to be activated if you choose to use it. If a third-party trial anti-virus came preinstalled on your computer or you installed one yourself, it most likely turned Windows 8 Defender off (disabled) to avoid conflicts since it includes anti-virus protection.
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