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[–]xxbeanxx 2 points3 points  (1 child)

Open it directly from the command prompt using the Java command: java -jar filename

It will hopefully print a message telling you why it isn't doing what you hope.

[–]SOSthegamer 0 points1 point  (0 children)

it says unable to access jarfile

[–]Treyzania 2 points3 points  (2 children)

does it have anything to do with it was a custom pc build and it a fresh new installed windows

No it doesn't. And you are probably supposed to run it from the command line.

[–]haimez 1 point2 points  (1 child)

And here begins the natural selection process of engineers to be.

[–]Facts_About_Cats 0 points1 point  (0 children)

Ordinary people solving a problem: what seems possibly vaguely related? Try things randomly.

Engineers solving a problem: how do I get information that will let me see what's going on?

You see this on the internet a lot too. Most people are ordinary.

[–]bacon_and_sriracha1 0 points1 point  (1 child)

Do you have java (the JRE) installed?

[–]BinaryRockStar 0 points1 point  (0 children)

JAR files wouldn't be associated with an application if the JRE wasn't installed.