Windows 8 will include more security features to provide users with better security protection and to protect end users from threats from the network. Microsoft has strengthened the Windows Defender Security program to protect users from all types of malware, including viruses, worms, zombie tools, and rootkits.
Windows 8 will provide malicious software signatures through Windows Update, and Windows Defender will use file system filters for real-time monitoring and protection and interact with the security startup technology for Windows 8. If you use a PC that supports UEFI secure boot (based on the UEFI 2.3.1 specification), then the security boot of Windows 8 will ensure that all firmware and firmware updates are secure.
In addition, the SmartScreen filter features used in IE browsers are also located in Windows 8. As in IE, Windows 8 uses SmartScreen for the first time a user downloads and opens an application from the Internet for credit detection.
In Windows 7, when you open an application for this type of download, you see the following tip:
In Windows 8, SmartScreen notifies users only when there is a high risk that the application has not yet established any credibility: