.reg
| File Type 1 |
 Registry File |
| File Format |
Standard (developed by Microsoft) |
| Usage |
Open manually; may run a program or script when opened |
| Rank |
★ ★ ★ Common |
| Description |
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.
Important: 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 With |
| Windows |
 Microsoft Registry Editor
|
|
| Updated |
2007 |
| File Type 2 |
Registration Information File |
| File Format |
Standard |
| Usage |
Referenced by an application; not meant to be opened manually |
| Rank |
★ ★ ☆ Average |
| Description |
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.
|
| Open With |
| Windows |
 Various programs
|
| macOS |
Various programs |
|
| Updated |
2007 |
|
