To fix the problem, you need to download and install the newest Java and install Massive File Renamer, then right click on the icon, next click “Open with”, and finally click “Java(TM) Platform SE Binary”. The program file is MassiveFileRenamer.jar, and my default program to open. I had used the program on Windows 7 with zero problems in the past, so I knew the program was legit. Yet, when I clicked on the icon the program still wouldn’t open properly, just WinRAR. After coming back to your website again, I realized that I needed to download the newest Java, which I did. I figured it out but I thought I would comment here to troubleshoot for other folks who may be in the same situation.Īfter installing Massive File Renamer, whenever I tried to open the Massive File Renamer program by clicking on the icon or by selecting it in the Start Menu it would open WinRAR and not open the actual program. I did however encounter some problems after I upgraded to Windows 10, but I couldn’t find any information on how to fix my problem.

Massive File Renamer was a life saver for me on Windows 7. Ivan, thank you so much for creating this program and making it available for free.