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28Jun/11Off

How To Fix Common Java Issues In Windows

So you're sitting there playing your favorite PC game, or compiling the latest version of the Linux kernel, and suddenly you hear your smart phone play the TARDIS ring tone from Doctor Who. You check the caller ID and notice it's that old lady you fixed a computer for recently. You answer, and she immediately starts complaining about how this Java based game on "the Yahoo" doesn't work any more.

Fixing little JRE issues for end-users can be annoying, but if you have a better idea of what to look for, it can save you a lot of time.

First, try the easiest fixes.

Open Internet Exploder Internet Explorer and click Tools > Internet Options > Advanced tab.

Click "Restore advanced setting" and restart IE, check if it still has the problem.

A good way to verify if Java is working or not, is to go to java.com/verify.

If that didn't work try resetting Internet Explorer (this is often a fix all for all sorts of IE problems).

Go back to the Advanced tab in Internet Options and select "Reset" at the bottom. This will reset IE to factory defaults. Close and re-open IE, and check if it fixed the problem. It will make you go through the first run wizard.

 

If you are still having Java issues, then you'll need to do some more digging.

Go back to the advanced tab in Internet Options and scroll down to "Java (Sun)"

It should only list the newest version of Java, and needs to have the checkbox checked.

Many times I've seen an older version of Java on the list and nothing else (even though the newest version was installed). If you see older versions of Java on the list uninstall them from the control panel or use JavaRa.

After you've removed the older versions, and made sure that the newest version of Java is installed, check java.com/verify to see if everything's working again.

 

If you are still having Java issues, then you should completely remove Java from your system using Revo Uninstaller. After you have completely removed Java, restart the computer and re-install the latest version of java from java.com. If you had to go this far, then this should get the problem fixed.

Another problem that I have seen, is an install loop when re-installing Java. You may see a message saying the product is already installed, which lets you pick yes to re-install, and it says "This action is only valid for products that are currently installed."

To fix this, download and run  JavaMSIFix.exe. The Java install should work correctly after running that tool.

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Posted by John

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