What s going on with the registry? I don t know anything about it, so what books are I reading?

When running an application, the registry uses program information to the operating system so that the application can be found, the location of the correct data file is specified, and other settings can be used.

The hkey classes root contains all the necessary information for the application to run:

all extensions and associations between files and applications;

All driver names;

The ID number of the class (the name of the item to be accessed is replaced by a number);

DDE and OLE information;

icons for applications and files;

hkey_current_user

The root directory that contains the configuration information of the currently logged-in user. User folders, screen colors, and Control Panel settings are all stored here. This information is referred to as a user profile.

hkey_local_machine

Contains configuration information for that computer (for any user). It is mainly composed of hardware, SAM, security, software, system, etc

hkey_users

The root directory that contains the profiles of all users on the computer. hkey_current_user

It's hkey users

children. Mainly by: The default subkey is constituted, and the new user is based on the default user. default subkey to generate its own configuration file, which includes environment, screen, sound, and other information.

hkey_current_config

Contains the hardware profile information used by the local computer when the system boots, and is actually created from two registry keys, the hkey local machine system and the hkey local machine software. Because this subtree is created dynamically, there is little practical point in modifying its contents.

In the case of not knowing it yourself.

Please do not modify the registry without permission.

The registry is the lifeblood of Windows, which stores a large amount of system information, and to put it bluntly, it is a huge database. If you don't know what a database is, that's fine, it doesn't affect your knowledge of the registry, but it's a good idea to know about databases. All the information in the registry is usually managed by the Windows operating system, and can also be modified through software or manually.

The registry contains a lot of important information about the system, including peripherals, drivers, software, user records, etc., and the registry largely "directs" how the computer works.

The registry is very useful, very powerful, and is the core of Windows. By modifying the registry, we can throttle, optimize, and so on on the system. For example, if we don't want others to use the Start menu, we can modify the registry to achieve this purpose.

There's more.

For example, you can try to prohibit the running of commands.

First, get started - run Regedit to enter the registry.

After clicking on explorer, right-click in the window on the right, create a new dword value, name it norun, then double-click it, change its numerical data to 1, log out, you look again, running the command is prohibited. Isn't it.

Like the concept of a social profile and identity card for each person, it also has the role of event recording. It allows the system to better locate the location, function, configuration information, etc. of each hardware and software.

Record information about the software installed on your computer.

You can go to the encyclopedia to see it, and it's very detailed.

The registration information of the computer software is all in it!!