Home : File Types : REG File

.REG File Extension

File Type 1Registry File

4.4 (77 Votes)
CategorySystem Files

What is a REG file?

A REG file updates the Windows Registry when run. Custom REG files can be created to alter different aspects of Windows.

More Information

To create your own registry update file, follow these steps:

  1. Launch Regedit (From the start menu, select Run, type "Regedit")
  2. Select the section of the registry you are interested in modifying
  3. From the File menu, select Export
  4. Choose "Selected Branch" from the Export Range option at the bottom of the window.
  5. 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.

Open over 300 file formats with File Viewer Plus.

Programs that open REG files

Updated 11/2/2020

File Type 2Registration Information File

3.0 (21 Votes)
CategorySettings Files

.REG File Association 2

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.

Programs that open REG files

Various programs
Various programs
Updated 6/9/2009

About REG Files

Our goal is to help you understand what a file with a *.reg suffix is and how to open it.

All file types, file format descriptions, and software programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

If you would like to suggest any additions or updates to this page, please let us know.