profiles for each user, the applications installed on the computer and the types of documents that each can create,
Most of the configuration information (but not all) is stored in the Windows Registry.
Hkey_local_machine
There is no "registry" on a motherboard. The Windows Registry is stored on the hard drive.
A registry repair is a kind of software utility that allows you to remove unwanted items from the Windows registry. By searching for registry repair on the Internet, plenty of information is available.
registry database
A security descriptor can be stored as part of an object's metadata in an operating system, such as in the file system for files and folders or in the registry for registry keys. It contains information about the security attributes of the object, such as the owner, permissions, and auditing settings.
The registry is spread along different files but if I'm not mistaken the majority of it is stored in so called SAM.
The question makes no sense. The registry is where the keys are stored.
Registry
system.dat or restore.sys
PHM Registry Editor allows you to edit the registry of your pocket PC or smartphone. The registry is where information regarding configuration information is stored and this software allows you to explore this and modify your applications and system to suit you. It offers a backup feature for security, however even with this safeguard you should be cautious to edit something as fragile as a registry on an expensive device unless you are certain you know what you are doing.
hives