: Windows Defender was upgraded from a simple antispyware tool to a full-blown antivirus equivalent to Microsoft Security Essentials, providing out-of-the-box protection.
: Apps from the Windows Store run in isolated environments with limited access to system files and personal data compared to traditional desktop programs. 2. Login & Authentication Enhancements How Secure Is Windows 8? – AZMATH
: Allows certified antivirus software to start before other drivers, ensuring malware cannot "hide" by loading before the security suite. : Windows Defender was upgraded from a simple