reg

The "reg" command line tool is a utility in Windows operating systems used to interact with the Registry. The Registry stores configuration settings, user preferences, and other system-related information. With the "reg" command, you can create, modify, delete, and query registry keys and values. This tool is primarily used by advanced users, system administrators, and support personnel for troubleshooting, configuring, and scripting tasks. The "reg" command offers a variety of subcommands, such as "add," "delete," "export," "query," and "import," each serving a specific purpose within the Registry. The tool allows you to automate repetitive tasks and manage the registry efficiently through scripts or batch files. Proper usage and caution are advised when using the "reg" command, as any incorrect modifications to the Registry can potentially cause system instability or even render the system inoperable.