File Extension Search

.chg File Extension

Developer: Microsoft Corporation
File type: Windows Net Logon File
You're here because you have a file that has a file extension ending in .chg. Files with the file extension .chg can only be launched by certain applications. It's possible that .chg files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .chg file?

Data stored in system files are referenced by the associated operating system when required to provide support or certain functionalities requested by the user from its integrated features. Files affixed with the .chg extension are classified as system files used by the Microsoft Windows 7 OS and are also specifically called Windows Net Logon files. Net Logon is an applet built into the Microsoft Windows 7 OS as a service corresponding to user login functionalities. Also called Netlogon and change log files, these CHG files were developed by Microsoft as login security database tracking files. Files appended with the .chg extension contain vital data used by the Microsoft Windows 7 OS and should not be opened or modified, especially since login data corresponding to Microsoft Windows 7 user accounts created by a user with administrator privileges are stored and are referenced by these files during user account login. This means editing the content of these CHG files can damage the login functionalities of the Microsoft Windows 7 OS, and may prevent a user from logging into a user account even when the correct credentials are used.

how to open a .chg file?

Launch a .chg file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .chg file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .chg files aren't yet associated with it. In this case, when you try to open a .chg file, you can tell Windows which application is the correct one for that file. From then on, opening a  .chg file will open the correct application. Click here to fix .chg file association errors

applications that open a .chg file

Microsoft Windows 7 Net Logon

Microsoft Windows 7 Net Logon

The Net Logon is an applet assembled in Microsoft Windows 7 OS as a service related with login functionalities. This service is utilized by a computer that is connected to a domain to securely log on the domain. It maintains a protected channel between the computer and the domain controller for verifying users and services. It is also known as Netlogon and change log files, these CHG files were made by Microsoft Corporation as a login security database tracking files. Files with .chg extension has an active data utilized by the Microsoft Windows 7 OS, and should not be accessed or edited since login data related to its user accounts that was made by a user with administrator privileges are saved and are referenced by these files during user account login. Editing the content of these CHG files can cause troubles in login functionalities of the Microsoft Windows 7 OS, and may stop the user from logging into a user account even when the correct credentials are used. If this service is stopped, the computer may not validate users and services and the domain controller cannot register DNS records. If this service is disabled, any services that plainly depending on it will fail to start.
MS Windows OS

MS Windows OS

Microsoft Windows is a succession of graphical interface operating systems developed, marketed, and sold by Microsoft Corporation. The company introduced an operating environment named Windows as an add-on to MS-DOS in response to the growing interest in graphical user interfaces (GUIs), on November 20, 1985. The most recent client version of Windows is Windows 7; the most recent server version is Windows Server 2012; the most recent mobile version is Windows Phone 7.5. An operating system (OS) is a compilation of software that manages computer hardware resources and gives common services for computer programs. It is a very significant component of the system software in a computer system. Application programs need an operating system to function. It can be sorted out by technology, licensing, ownership, working state, usage, and by many other characteristics, and it can be found on almost any device that contains a computer, from cellular phones and video game consoles to supercomputers and Web servers.

a word of warning

Be careful not to rename the extension on .chg files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .chg. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.
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