Firewall: this helps prevent malicious content, such as viruses and worms, from entering your computer and also protects it against hackers.
Automatic updates: checks for relevant security-related updates from the operating system provider. This ensures that your computer is always updated and protected against the latest online threats.
Malware protection: prevents spyware and other unwanted software from being installed on your computer without your consent. This often includes real-time protection against such software while you are online.
Active content: this refers to small programs that are installed on your computer while you are browsing the Internet. They are meant to provide you with an interactive Internet experience, but in some cases, they can be used to damage the data stored on your computer or install malicious software. Your browser settings can be used to disable active content or specify how it should be handled.
Other security settings: these may include Internet settings and User Account Control settings. User Account Control prevents unauthorised changes to your computer by asking for the password before making changes.