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2011-10-21

A+: Key Windows components to emphasize

Key Windows components to emphasize in A+ study are:
• Registry
• Virtual Memory
• File Systems

Windows' Registry is a database for Windows, applications, and user settings. When you install a program, update Windows, or even change the color of the desktop, a part of the Windows Registry changes. There are five different sections (known as hives) to the Windows Registry, whether it’s the Registry in Windows 7, Vista, XP, or 2000:
HKEY_CLASSES_ROOT—Links file extensions to specific applications installed on the computer (also stored in HKEY_LOCAL_MACHINE)
HKEY_CURRENT_USER—Stores configurations specific to the current user, such as screensaver, desktop theme, and Microsoft Office user information (also stored in HKEY_USERS)
HKEY_LOCAL_MACHINE—Stores hardware and software setup information
HKEY_USERS—Stores user-specific information for all users of this computer
HKEY_CURRENT_CONFIG—Stores the settings for the current hardware profile (also stored in HKEY_LOCAL_MACHINE)
Any setting in Windows is stored in one of two top-level keys (HKEY_LOCAL_MACHINE and HKEY_USERS). The other three keys provide shortcuts to sections of these two keys.  


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