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Becoming familiar with the Registry
structure subtrees and understanding the purpose of these subtrees
will help to troubleshoot and maintain the computer. There is a key
for every process that is running on the system. The following five
subtrees or subtree keys are displayed in Registry Editor Window.
HKEY Notation
The Registry HKEY notation is as follows:
- HKEY_USERS – Contains the system default settings data
that is used to control individual user profiles and environments
such as desktop settings, windows environment, and custom software
settings.
- HKEY_CURRENT_CONFIG – Contains data on the active
hardware profile that is selected during the boot process. This
information is used to configure settings for the device drivers
to load and for the display resolution to use.
- HKEY_CLASSES_ROOT – This subtree contains software
configuration data of all the software that is installed on the
computer.
- HKEY_CURRENT_USER – Contains data about the current
user logged onto the computer. Retrieves a copy of each user
account that is used to log on to the computer and stores it in
the registry.
- HKEY_LOCAL_MACHINE – Contains all configuration data
for the local computer, including hardware and operating system
data such as bus type, system memory, device drivers, and startup
control data. Applications, device drivers, and the operating
system use this data to set the computer configuration. The data
in this subtree remains constant, regardless of the user.
Figure
is a exercise on registry keys.
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