reg-copy
Copy keys and their values in the registry. tldr-pages
On Windows
Windows
Copy a registry key to a new registry location
reg copy old_key_name new_key_nameIdentifyCopy a registry key recursively (with all subkeys) to a new registry location
reg copy old_key_name new_key_name /sIdentify/sCopies all subkeys and entries under the specified subkey. Windows commands referenceforcefully (without a prompt) copy a registry key
reg copy old_key_name new_key_name /fIdentify/fCopies the subkey without prompting for confirmation. Windows commands reference