![]() Installer Detection: When a new process is about to be started without administrative rights, Windows applies heuristics to determine whether the new process is likely to be a legacy installation program. But it depends on UAC features, such as UIPI. For example, it configures itself to start every time the user logs on. PMIE makes it more difficult for malware that infects a running instance of Internet Explorer to change the user's settings. By default, Protected Mode is enabled when a user browses sites in the Internet or Restricted Sites zones. Windows Internet Explorer operates in low-privileged Protected Mode, and can't write to most areas of the file system or the registry. Protected Mode Internet Explorer (PMIE): PMIE is a defense-in-depth feature. Sending window messages, such as synthetic mouse or keyboard events, to a window that belongs to a higher-privileged process User Interface Privilege Isolation (UIPI): UIPI prevents a lower-privileged program from controlling the higher-privileged process through the following way:
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