The Windows CMD command “reg” is a command line prompt that allows users to access and modify the Windows registry. The Windows registry is a database that stores settings and options for the operating system, applications, and users. It is used to store information about hardware, software, user preferences, and system configurations. The “reg” command can be used to add, modify, or delete registry keys and values, as well as to export and import registry data.
Syntax of the reg Command
The syntax of the “reg” command is as follows:
reg [command] [options] [key]
Where:
- command – the action to be performed (e.g. add, delete, query, etc.)
- options – additional parameters to be used with the command (e.g. /s, /v, etc.)
- key – the registry key to be modified (e.g. HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion)
Options for the reg Command
The following are some of the options available for the “reg” command:
| Option | Description |
|---|---|
| /s | Performs the command on all subkeys of the specified key |
| /v | Specifies the value name to be modified |
| /t | Specifies the type of data to be modified (e.g. REG_SZ, REG_DWORD, etc.) |
| /d | Specifies the data to be written to the registry |
| /f | Forces the command to be executed without prompting for confirmation |
Examples of Using the reg Command
The following are some examples of using the “reg” command:
- To add a new registry value:
- Open the Command Prompt window
- Type the following command: reg add “HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion” /v MyValue /t REG_SZ /d “My Data” /f
- Press Enter to execute the command
- To delete a registry value:
- Open the Command Prompt window
- Type the following command: reg delete “HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion” /v MyValue /f
- Press Enter to execute the command
- To query a registry value:
- Open the Command Prompt window
- Type the following command: reg query “HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion” /v MyValue
- Press Enter to execute the command
Conclusion
The “reg” command is a powerful tool for managing the Windows registry. It can be used to add, modify, or delete registry keys and values, as well as to export and import registry data. The syntax of the command is straightforward, and it has a number of options that can be used to customize its behavior. With the “reg” command, users can easily manage the Windows registry from the command line.