Jar file opens with internet explorer

Question

I downloaded Optifine, it's a jar file, after that i installed Java to install optifine with the jar file, but the jar file opens with internet Explorer prompting me to download the file again. This is häppening with Windows 10

Solution

Your .jar file-association has probably been hijacked, perhaps by Internet Explorer.

You can fix the problem with:

• Download and run the free Jarfix, or
• Uninstalling an then re-installing Java Runtime, or
• In Windows Explorer, right-click on the .jar file, select Open with and click on Choose another app. Navigate to and select javaw.exe. You would need to ensure a -jar parameter is added.

It would be better to add the JRE executable folder to the PATH environment variable, although not absolutely required.

Comments

[Noob]

it is not in the folder program files, i checked "program files (x86)" the folder java is there, i went there, then went to the folder "bin" there are different .exe's all starting with java, but none of them work

[VollRahm]

Weird. It should be java.exe

[VollRahm]

For me its in C:\Program Files\Java\jre1.8.0_211\bin\java.exe

[Noob]

i have the file, but it doesn't work when i open with it

[Noob]

Jarfix worked great, thank you

[Nick J]

it would help if you could add how/where someone adds the -jar parameter, or how one adds it if it wasn't added when first selected