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#10
This is a somewhat confused source. The term "factory settings" is relevant only in the context of OEM machines that sell with windows preloaded and preactivated from the factory. Such computers already have a recovery manager software (called by different names in different brands) that lets you revert to factory state in a jiffy.
As for retail windows, "factory state" could mean a fresh OS install or after drivers are installed or after apps are installed etc. Even in win7, one can create an image using the inbuilt restore-backup. Its possible win8 could have an autostarting wizard that would prompt you to create this image or it could even be an automatic process requiring no user intervention. Or perhaps there could be an OEM-like mechanism that would capture an image and create a hidden recovery partition.