Java Runtime Environment Error

Hey I want to install forge but when I click on it, it says "how to open the .jar file?". I figured out that I have no Java so I downloaded the latest version 1.0.8 update 201. The problem here is, when I install java, there is a box with no dialog or anything, just a white window. I installed older versions, and they worked but forge said:
"This Application Requires A Java Runtime Environment 1.8.0"

Spoiler: Image

Spoiler: Bugged Box

Things I tried:

1. restart
2. deactivating anti-aliasing in the video card driver
3. checking java for the compatibility
4. downloaded java offline&online version several times
5. downloaded java older version
6. downloaded java versions from different platforms

Anyone has a fix? I searched through the internet and tried everything but nothing worked :(

 

If you still need help, I can help you figure it out... do you have discord? If so feel free to add me :) RazorRider#9581

 

you need to install java to run .jar files, windows 10 sometimes has issues running java thought

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I couldn't get java to work on my pc but after some time I downloaded it again and it started working

 

@razorrider7 could fix the problem. A big thank you to him!!