Windows 10: Why can't I open .jar files with JavaTM Platform SE?

Discus and support Why can't I open .jar files with JavaTM Platform SE? in Windows 10 Network and Sharing to solve the problem; I can't open any .jar files with JavaTM Platform SE. I tried uninstalling Java and installing it back several times, I just got a new computer and it... Discussion in 'Windows 10 Network and Sharing' started by TwodoorUL, May 11, 2023.

  1. TWODOORUL
    TwodoorUL Win User

    Why can't I open .jar files with JavaTM Platform SE?


    I can't open any .jar files with JavaTM Platform SE. I tried uninstalling Java and installing it back several times, I just got a new computer and it doesn't work for this one for some reason.

    :)
     
    TwodoorUL, May 11, 2023
    #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, May 11, 2023
    #2
  3. MICHAELGLEBA JR.
    MichaelGleba Jr. Win User
    Cannot Open .jar Files on windows 10

    This is for .jar files if you are using it on Minecraft (PC). But I'm not sure if this works on other things as well.

    1. Install Java Runtime Enviorment SE

    2. Download the .jar file

    3. Find the open tab on the file explorer and click the drop down box.

    4. Click Java Platform SE Binary

    5. A new tab will pop up with the java logo on it (it's ok and do whatever to install the mod).
     
    MichaelGleba Jr., May 11, 2023
    #3
  4. VINODH_KUMAR V
    Vinodh_Kumar V Win User

    Why can't I open .jar files with JavaTM Platform SE?

    .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, May 11, 2023
    #4
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Why can't I open .jar files with JavaTM Platform SE?

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