I have suddenly got this issue where when i try to open a .jar file with Java, that is designed to open with a double click such as an installer, it just wont open. I have been looking online for hours to find a way to fix it but i have had no luck. I have tried this with a file that i know previously worked without issue, but suddenly it won't open. I only have 2 files that i have tried, one just opens the window but nothing loads on the window and just closes almost instantly and the second just doesn't show anything at all, but i have not tried to use this file before so it might just be that file. I have already tried Jarfix and the issue still persists. If anyone can help me without having to reset my PC that would be great.