RegMerge is a program that lets you first visualize and then import a REG file into the registry, so you can check whether a new file could damage the registry or change your existing configuration. Importing REG files into the registry is a simple task, but the difficult part is visualizing the file itself. That's why we'll use the RegMerge platform, which makes this job easy.

With this environment, you can make many changes to the registry and observe them before executing them, ensuring there are no unexpected changes or damage.

The RegMerge interface

Once you download the program from its official page, you'll see its simple interface. From there, you can easily add a REG file using the Load REG file button and then view it in the work area.

Some of the functions you can view include HIVE type (HKEY_USER, HKEY_LOCAL_MACHINE, etc.). But the important information the platform displays is the KEY information, the value name, the file data, and the current HIVE data. You can also compare the effect of the REG file with your current registry, so you'll know the true impact of the import.

How to Check Registry Changes Using a REG File
Compare the REG file with your registry

From the "Check" option, you can use the Missing option to see the keys you'll insert that aren't in your registry, and the invert option to see the changes made to the registry, among other functions.

When you're sure of everything, just click the Merge checked changes into registry button at the bottom of the platform, and the environment will do the job quickly.

How to Check Registry Changes Using a REG File
A simple platform to use

Backup before merging

From NeoTeo, we recommend that before using this tool and importing a REG file into your registry, you make a backup of the registry and create a system restore point. This way, you'll be covered against any unexpected registry problem that could affect the smooth operation of your operating system.

Why RegMerge stands out

RegMerge is a really good platform to visualize the changes you are going to make to your operating system's registry. The visualization of the REG files is very visual, making it easy to find errors. It also offers comparison tools with your current registry, which minimizes any problems when manipulating the registry.

RegMerge is a free program available for Windows operating systems, both 32-bit and 64-bit versions.