For example, jar files can be associated to run with other applications or they could lack file association completely. Alternatively you can download it from its website. I executed it and it solved the problem for me instantaneously. Then open in Actions box and select Edit. Note: Jar files can’t run on your PC if you don’t have the proper associations. There's an answer by Savage117 there that will link you to a program called Jarfix that reassigns the.
Press the Advanced button and check the Edit File Type dialog box. Then select ' File Types,' and choose JAR File. Navigate to your Java installation folder, go inside the /bin/ folder, right click on Java.exe and set it to Run as Administrator. Open the Windows Explorer and select ' Folder Options' from the 'TOOLS' option. JAR Files on Windows 10 Make sure you are updated with the latest Java Runtime Environment. Running the Jarfix is actually really easy. Most likely, you have already tried this step if you have a landed on this article, but it is worth mentioning just in case.