【 Weak current college 】 computer registry not open solutions (5)

1, installation information for records;
2, setting up hardware properties;
3, custom WINDOWS and application software.

The logical structure of the registry in the most basic is the primary key, subkeys, and values and key values are in accordance with the group-approach to management and organization of the first is the base root keys, each root keys under a number of sub keys, each key down while there are a number of (one or more) child keys, subkeys under can have one or more key values and keys.

Root key: the registry key at the bottom, similar to the disk's root directory.
Subkey: subkeys are located under the root keys can also be nested in other subkeys in the registry of the six root keys, there are a number of sub key, and each key can be nested and thousands of subkeys.
Key value of item with key values: in each root keys and subkeys, you can have a number of key values, this structure is similar to the root directory and subdirectories on the disk's file and the file contents.

Windows9x registry logic structure contains six root keys, each root key contains a category different information in windowsNT/2000/XP, if you used windows came with Editor open, I can only see the five, there is also a hidden root keys: H

KEY_PERFOR_MANCE_DATA.

*HKEY_CLASS_ROOT
Records all the data in the Windows operating system file format and associated information, primary record different file suffix and the corresponding application to the following subkeys can be divided into two categories: one category is already registered for various file extensions, the subkeys are preceded with a \ & quot;. \"; The other type is the kind of file type information.

*HKEY_CURRENT_USER
Some root key contains the current logged-on user's user profile information, this information to ensure that different users logged on to the computer, use your own modifications of settings, such as custom wallpaper, your Inbox, your security access.

*HKEY_LOCAL_MACHINE
This root key contains the current configuration of your computer, including Reiki the installed hardware to software to set up these information for all user login system services. This is the thing a registry's largest and most important root keys!

*HKEY_USERS
HKEY_USERS root keys including the default user information (DEFAULT subkey) and all previous login user's information.

*HKEY_CURRENT_CONFIG
This root key is actually HKDY_LOCAL_MACHINE/CONFIG/0001 branch of the data exactly the same.

* The root key HKEY_DYN_DATA
The key to save every time the system starts, create a system configuration and the current performance information for the root keys exist only in windows9X in

*HKEY_PERFORMANCE_DATA
On windowsNT/2000/XP registry while no HKEY_DYN_DAT key, but it does hide a \ & quot; HKEY_PERFORMANCE_DATA key. all systems of dynamic information is stored in this subkey, the system's own registry editor cannot see some key media can use specialized-program to view this key, such as using performance monitor.