"Load Hive" option grayed out

I want to load the HKEY_LOCAL_MACHINE hive from another installation of Windows (e.g. X:\Windows\System32\config\SYSTEM), but apparently I can't load the hive because the "File -> Load Hive" menu item is disabled:

Registry Editor - Load Hive grayed out


Solution 1:

You need to load a hive into a specific key, so it's necessary to select a key first:

Registry Editor - Select HKEY_LOCAL_MACHINE key

You can load hives into HKEY_LOCAL_MACHINE or into HKEY_USERS.

Once you've clicked HKEY_LOCAL_MACHINE, the "Load Hive" menu item will immediately become available:

Registry Editor - Load Hive Enabled