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Not to be tampered with lightly, it is a system-defined database used by the Windows operating system to store configuration information. All application and system-related Data is stored in Values assigned to Keys that are again categories as Hives to ensure efficient categorization. To change the system or application config, you can change the data or values using the RegEdit utility.

It is important to remember that achieving a good system registry restore is dependant on you having taken the proactive steps to creating a good, usable backup to restore from. It is also important to read help files and search the Microsoft online Knowledgebase for registry backup and restore information for the version of windows you are https://wikidll.com/microsoft/d3dx9_39-dll running.

Installers and uninstallers become more complicated, because application configuration settings cannot be transferred by simply copying the files that comprise the application. The Elektra Initiative provides an alternative back-end for text configuration files for the Linux operating system, similar to the registry. Windows 2000 and later versions of Windows use Group Policy to enforce Registry settings. Policy may be applied locally to a single computer using GPEdit.msc, or to multiple computers in a domain using gpmc.msc.

Modify Values & Data In A
Registry Key

Windows 2000 keeps an alternate copy of the registry hives (.ALT) and attempts to switch to it when corruption is detected. In addition, the %Windir%\Repair folder contains a copy of the system’s registry hives that were created after installation and the first successful startup of Windows.

  • Windows reads this registry key into TIME_ZONE_INFORMATION structure during system startup.
  • This key contains time zone information, including the difference in minutes between UTC and local time, and reference information during daylight saving time.
  • HKLM and HKU are the only root keys that Windows physically stores on files.
  • An example of a place to hide data is in the time zone information key, HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TimeZoneInformation (Carvey, 2004).
  • However, this technique requires a simple piece of code to encode the text before storing it into the registry, and to decode the binary data to its readable form when retrieving it.
  • It is not-trivial for forensic examiner to find such hidden data as the binary data (encoded text in hexadecimal form) is stored as it is in the registry, and binary data is common in registry.

Windows Registry

Data from .REG files can be added/merged with the registry by double-clicking these files or using the /s switch in the command line. REGEDIT.EXE supports searching for key names, values, or data throughout the entire registry, whereas REGEDT32.EXE only supports searching for key names in one hive at a time. A simple implementation of the current registry tool appeared in Windows 3.x, called the "Registration Info Editor" or "Registration Editor". This was basically just a database of applications used to edit embedded OLE objects in documents.

Differences Between The Win95 And Win98 Registry

Since an application’s configuration is centralized away from the application itself, it is often not possible to copy installed applications that use the Registry to another computer. This means that software usually has to be reinstalled from original media on a computer upgrade or rebuild, rather than just copying the user and software folder to the new computer.