You??™ll want to look in both
places if you??™re trying to find a particular application setting, because
most manufacturers (even Microsoft) aren??™t especially careful about
which branch is used for any given setting.
HKEY_USERS
This branch contains a sub-branch for the currently logged-in user, the
name of which is a long string of numbers that looks something like this:
S-1-5-21-1727987266-1036259444-725315541-500
This number is the SID (security identifier), a unique ID for each user
on your system (yours will be different than this one). See Chapter 8 for
more information on SIDs.
While it may sound like a good idea to edit the contents of this branch,
you should instead use the HKEY_CURRENT_USER branch described earlier,
which is a symbolic link (mirror) of this branch:
HKEY_USERS\S-1-5-21-1727987266-1036259444-725315541-500
No matter which user is logged in, HKEY_CURRENT_USER will point to the
appropriate portion of HKEY_USERS.
Because Windows only loads the profile (this portion of the
Registry) of the currently logged-in user, only one user
branch will ever be shown here. However, there will be a few
other branches here, such as .default (used when nobody is
logged in), and a few other branches that are of little interest
to most users.
HKEY_CURRENT_CONFIG
This branch typically contains a small amount of information, most of
which is simply symbolic links (mirrors) of other keys in the Registry.
There??™s usually little reason to mess with this branch.
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