Java's not important is it?

I've been battling with Java ever since I've had this thing. Of course Dell won't help me because, after all, it's a software problem. I've posted some screen shots of my burdensome quest to update Java:

First the installer wouldn't even open.


Secondly, the installation wouldn't complete.


Thirdly, when I finally got it to install, it presents a perfectly clear explanation as to why it still won't work.


Internal error 2762. Right. I should have known.