Howtogeek shows you what features has been removed in Windows 8.1  

Windows 8 introduced a new, simpler backup solution known as File History. However, it also included all of Windows 7′s old backup tools, which you could use to create system image backups. However, Microsoft noted that Windows 7′s backup tools were considered deprecated.

With Windows 8.1, these deprecated backup tools are no longer present. Windows 8.1 still allows you to import backup images created with Windows 7, so you can access your old files, but you can’t create a Windows 7 backup or a system backup image anymore. The advanced startup options menu no longer includes a “System Image Recovery” option to restore from a system image.

If you want to create a system image backup or restore from one, you’ll need to use third-party backup software.

  8 Features Microsoft Removed in Windows 8.1