Check if you already have the JRE installed by opening up Command Prompt and typing " java -version". Here are some steps to help troubleshoot this issue:ġ. To properly run a JAR file, you need to have the Java Runtime Environment (JRE) installed. The most common reason is that you do not have the Java Runtime Environment (JRE) installed on your computer. There could be various reasons why you are unable to run JAR files on Windows 10. JAR file? Why can’t I run JAR files on Windows 10?
jar file should now open with Java(TM) Platform SE binary as default program to open all jar files in future until you change it again manually or delete JRE from your system completely. Select “Java(TM) Platform SE binary” if it is available in the list, or click “Browse” and find javaw.exe in your Java installation folder (e.g.: C:\Program Files\Java\jre\bin).Ĥ. jar file and select “Open with” from the context menu.ģ. Download and install JRE from the Oracle website: Ģ. jar files on Windows 10, you will need to have Java Runtime Environment (JRE) installed. How do I open Java files on Windows 10?.Why can’t I run JAR files on Windows 10?.
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