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4.1.2 Explain Windows Registry (How to Access the Windows Registry ? ( is…
4.1.2 Explain Windows Registry
Windows registry
usually referred to as just the registry, is a collection of databases of configuration settings in Microsoft Windows operating systems.
What is the Windows Registry Used For ?
used to store much of the information and settings for software programs, hardware devices, user preferences, operating system configurations.
the registry can be thought of as a kind of DNA for the Windows operating system.
when a new program is installed, a new set of instructions and file references may be added to the registry in a specific location for the program, and others that may interact with it, to refer to for more information like where the files are located, which options to use in the program
How to Access the Windows Registry ?
is accessed and configured using the Registry Editor program, a free registry editing utility included by default with every version of Microsoft Windows.
it can be accessed by executing regedit from the Command Prompt or from the search or Run box from the Start Menu.
Registry Editor isn't a program you download.
Registry Editor is the face of the registry and is the way to view and make changes to the registry, but its not registry itself.
the registry is the collective name for various database files located in the Windows installation directory.
How to Use the Windows Registry ?
The registry contains registry values (which are instruction), located within registry keys (folders that contain more data), all within one of several registry hives ("main" folders that categorize all the data in the registry using subfolders).
Making changes to these values and keys using Registry Editor will change the configuration that a particular value controls.
Windows registry
Subtrees in the Windows Registry hierarchy.
HKEY_LOCAL_MACHINE - This subtree contains all the hardware- specific configuration data for that machine that essentially includes OS and hardware configuration.
HKEY_USERS - This subtree contains default set of settings as well as data for each user profile.
HKEY_CURRENT_CONFIG - This subtree contains data about the currently loaded profile.
HKEY_CLASSES_ROOT - Store Object Linking and Embedding (OLE) data and file associations.