Windows 10: Jar files won't open no matter what I do

Discus and support Jar files won't open no matter what I do in Windows 10 Network and Sharing to solve the problem; I've tried many methods, such as, using a batch file, reinstalling java, using jarx, and jarfix, and the jar files still don't open. Command prompt... Discussion in 'Windows 10 Network and Sharing' started by SheaMcGurgan, Feb 12, 2021.

  1. SHEAMCGURGAN
    SheaMcGurgan Win User

    Jar files won't open no matter what I do


    I've tried many methods, such as, using a batch file, reinstalling java, using jarx, and jarfix, and the jar files still don't open. Command prompt flashes for a second if I try to open java.exe and the jar file that I'm trying to open which is fabric-api-0.30.0+1.16.jar doesn't do anything. It doesn't matter what the jar file is though, because it won't work.

    :)
     
    SheaMcGurgan, Feb 12, 2021
    #1
  2. DAVEM121
    DaveM121 Win User

    jar files

    Fixing .jar file opening on Windows requires two steps:

    • Open the Control Panel, and chose "Default Programs - Associate a File type or protocol with a program". Find .jar extension (Executable JAR file) there, and pick Java as default program to open this extension. It will probably be listed as "Java Platform(SE)".
      A faster alternative perhaps is straightforward right-click on a .jar file, and then change associated program by clicking on the "Change..." button.
    • Now open the regedit, and open the HKEY_CLASSES_ROOT\jarfile\shell\open\command key. Luckilly for us, we may specify parameters there for the (Default) value. This is normally: C:\Program Files\Java\jre7\bin\javaw.exe" -jar "%1" %*

    I Hope this Answers your Question!
     
    DaveM121, Feb 12, 2021
    #2
  3. VINODH_KUMAR V
    Vinodh_Kumar V Win User
    .jar files opening in internet explorer

    Hi Robert,

    Welcome to Microsoft Community.

    I understand that .jar files opens in Internet Explorer by default and downloads again on Windows 10. I will certainly help you.

    I suggest you to follow the below steps and check if it resolves the issue.

    1. Right click on the .jar file, select Open with
    and click on Choose another app.

    2. Select the app you want to open the .jar file from list.

    3. If required, highlight the app and check the option
    Always use this app to open, click OK.

    Hope this helps. If the issue remains unresolved, please get back to us and we would be happy to help.
     
    Vinodh_Kumar V, Feb 12, 2021
    #3
  4. NATEHOOPU
    NateHoopu Win User

    Jar files won't open no matter what I do

    .jar files opening in internet explorer

    I have the same problem, I accidentaly switched a .jar file to open with internet explorer, or notepad, I can't remember, and I forgot to unselect set it to the default, and now I can't get back to the java thing, please help.
     
    NateHoopu, Feb 12, 2021
    #4
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Jar files won't open no matter what I do

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