Windows Defender is a powerful security feature that comes built-in with the Windows 10 operating system. It is actively scanning for potential threats on your device and protecting your data from malicious attacks. It is recommended to scan your device at least once a week or, ideally, every day to ensure that all of your important data is secure and safe. Additionally, it is important to note that, while Windows Defender is doing a great job of scanning your device and keeping you safe, it’s also important to watch out and make sure your computer is up to date with the latest patches and updates. Keeping your device and software updated is essential to maintaining the highest level of security and protection.