HKEY_USERS Stores the personal settings of all registered users, including special system accounts that are used for administrative tasks HKEY_LOCAL_MACHINE Contains system-wide settings that apply regardless of who's logged in HKEY_CURRENT_USER Contains personal settings for the currently logged-in user HKEY_CLASSES_ROOT Contains technical information that enables applications to exchange information with one another How is the Registry structured?Īt its highest level, the Registry is split into five sections: From here on, we'll focus on that tree structure, since that's how Registry locations are normally described but if, in the future, you come across a reference to the hive files themselves, you'll know what they are. While it may be useful to know the locations of these hives, once you open the Registry Editor, you'll see that the database is internally structured as a virtual tree that doesn't directly correspond to the arrangement of the on-disk hives. You'll find your own copy sitting in your user folder, although you'll have to enable "Hidden items" in Windows Explorer to see it. Additionally, for every registered Windows user, there's a hive called NTUSER.DAT file that contains information about their identity, personal settings and so forth.
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