How to Load Registry Hives
Warning Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on your computer.
You may want to make changes to a corrupt registry hive or delete or edit so information in your mounted registry hive, in this video i will show you how you can load a registry hive from another computer machine.
https://msdn.microsoft.com/en-us/library/ms724877.aspx