Windows has had backup utilities for years in many different forms and functions. Based on screenshots supposedly from new internal builds of Windows 8, Winrumors is reporting a new feature for backing up your PC called History Vault.

Little can be gleaned from the screenshot, but it is reported that this is a feature which will rival OSXs Time Machine. Many believe this to be a copied feature from OSX, but when you consider that History vault is supposedly built on Shadow Copy which was a feature in Vista, which was released before Time Machine, I would say this is more of an iteration on technology already present in Windows than a copy. What we may see is a new interface which might be more user-friendly, similar to Time Machine for OSX.
Source: http://windows8news.com/2011/03/30/w...history-vault/