# reg > Manage keys and their values in the Windows registry. > Some subcommands such as `reg add` have their own usage documentation. > More information: . - Execute a registry command: `reg {{command}}` - View documentation for adding and copying subkeys: `tldr reg {{add|copy}}` - View documentation for deleting keys and subkeys: `tldr reg {{delete|unload}}` - View documentation for searching, viewing, and comparing keys: `tldr reg {{compare|flags|query}}` - View documentation for exporting and importing registry keys not preserving the key ownerships and ACLs: `tldr reg {{export|import}}` - View documentation for saving, restoring registry and unloading keys preserving the key ownerships and ACLs: `tldr reg {{save|restore|load|unload}}` - Display help: `reg /?` - Display help for a specific command: `reg {{command}} /?`