Which of these Javas do I uninstall?

I see there is a 64 bit one and a I guess 32 bit one? I'm a bit confused on this here. Please tell me which to install so a new up to date version can be installed.

 

You have Windows 64 bit, that's why you have Java x32 and x64. In theory, that's normal, you need both.

So, uninstall both and install again both x32 and x64 versions of the latest Java.
Of course as i hope you know, it is recommended to disable the java browser plugins, because Java has more security holes than swiss cheese.

 

You only need 32bit Java if you plan on using the 32bit plugin in IE.

From: http://www.java.com/en/download/faq/java_win64bit.xml

Cheers, Nick

 

Right, you can't use 64 bit plugin with 32 bit browser.

 

i usually uninstall both and then run a free program called JavaRa to cleanup any remains. then I reinstall both.

If you have to pick just one, then go with the 32-bit version and use only 32-bit browsers and 32-bit versions of apps that need java.

 

Java 64-bit:
- Not required by most Java-based software
- Incompatible with 32-bit Java-based software
- Compatible with 64-bit browsers
- Incompatible with 32-bit browsers
- Lacks Online Installation and Java Update features
- Can only be updated manually

Java 32-bit:
- Required by most Java-based software
- Compatible with 32-bit Java-based software
- Incompatible with 64-bit browsers
- Compatible with 32-bit browsers
- Does not lack Online Installation and Java Update features
- Can be updated manually

My recommendation: uninstall them both and install only the latest Java 32-bit. The Java 64-bit at the moment is only useful if you need to run a 64-bit browser together with Java. But running Java together with a browser is not recommended nowadays and you should disable such integration: http://www.java.com/en/download/help/disable_browser.xml

 

AFAIK, 32-bit Java-based software doesn't work with the 64-bit Java.

You can find multiple reports on the web about this limitation. Example.

Oracle explains more here: http://www.oracle.com/technetwork/java/hotspotfaq-138619.html#64bit_description

So, he probably needs the 32-bit Java anyways.

 

Unless you need java for games or any application that require it,I suggest remove that exploit ware off your machine and you may just find you never needed it in the first place.

 

Your kinda right

From the link you provided:

The problem comes when interfacing with other applications (or other applications interfacing with Java), as you mention can cause problems when running 32bit vs 64bit.

Cheers, Nick

 

I see that you are running the 64 bit Firefox version known as Waterfox. You will need to run both versions of Java if you wish to use Java in a x64 browser like Waterfox & a x86 (32 bit) browser like the normal Firefox. Remember that there are both x64 & x86 versions of Internet Explorer on Windows 7 64 bit.

This may be useful:

Which Java download should I choose for my 64-bit Windows operating system?

As Java is considered a bit of a security risk of late, I recommend the QuickJava extension for Firefox/Waterfox. I run this extension myself & I usually only enable Java when I actually need it on a specific page.

 

Well, both.

Hope this helps.