Jarfix is a free tool that assists in the repair of jar extension files in the Java runtime environment. If the PC does not run the java file, we must re-associate properly.
Jarfix is a safe, lightweight, simple, and completely free solution for when your PC refuses to run Java files when you open items with the.jar extension.
It occurs because JAR files are normally associated with other file formats, preventing them from running. To resolve this issue, use Jarfix, a simple application that allows you to run JAR files while preventing them from becoming associated with other file formats.
The.jar association has been stolen by a program, which is the root cause of the problem described above. If you installed the Java Runtime Environment for the first time, the file type “jar” is correctly assigned to javaw.exe.