File Extension Library

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.REG File Extension

  • Developer by: Microsoft
  • Category: System Files

What are .REG files and how to open them?

Can't open .REG file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .REG file.

What is a .REG file extension?

.REG file extension is created by Microsoft. .REG has been classified as System Files.

.REG is Registry File

Updates the Windows Registry when run; custom REG files can be created to alter different aspects of Windows; to create your own registry update file, follow these steps:

  • Launch Regedit (From the start menu, select Run, type "Regedit")
  • Select the section of the registry you are interested in modifying
  • From the File menu, select Export
  • Choose "Selected Branch" from the Export Range option at the bottom of the window.
  • Save the file as a ".reg" file.
    • NOTE: Manually updating the Windows registry is an advanced process and should only be performed if you know exactly what you are doing. Incorrect registry updates may render Windows inoperable.
    List of all softwares that can open the Registry File
    Windows
    Microsoft Registry Editor
    File Type 2:

    Registration Information File

    Category: Settings Files

    Stores registration key, serial number, and other user registration information for a certain program; created when registration is completed; referenced by the program when opened to authenticate the user, but not meant to be opened manually.

    How to fix problems with .REG files

    1. You need to update the application that you normally use to open .REG files. Only the latest version of the software supports the current .REG file format
    2. You need to check the .REG file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)
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