Add new keys and their values to the Windows registry.

:: Add a new registry key:
reg add <key_name>

:: Add a new value under a specific key:
reg add <key_name> /v <value>

:: Add a new value with specific data:
reg add <key_name> /d <data>

:: Add a new value to a key with a specific data type:
reg add <key_name> /t <type>

:: Forcefully overwrite the existing registry value without a prompt:
reg add <key_name> /f