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Windows 8 is an operating system (OS) from Microsoft released in October 2012. Windows 8 succeeds the previous Windows 7 operating system and represents the most modern upgrade of the Windows operating system in recent decades.
Windows 8 offers many new features and represents a more substantial change than some former Windows versions. This starts with a more versatile interface that can accommodate touch screen use, as well as new authentication methods, including a picture password option that replaces a text password with a visual sign-on.