When you install Java on your machine – it will normally install a small program at startup that checks for updates – that program can get disabled – or not do its job – or you might just wish to check for updates manually for peace of mind.
Here is how to check for Java updates…
1. Open the URL http://www.java.com/ in a new browser tab or window (clicking the link here will do that).
2. Underneath the big “Free Java Download” button – click the link that says “Do I have Java?” – we have highlighted this in blue for you in the image below:
3. Next – click the big red button that is labeled – “Verify Java Version”:
4. Now – wait while Java installation is verified
5. You should see one of 3 messages – either you have no Java/Java is disabled – or – your version of Java is out of date with a link to the update – or – as in this case – that your Java version has been verified, and you have the latest Java installed:
If you need to update java – just follow the prompts – after downloading the installer, you will need to close out all your browsers so that the Java browser plugin can be updated. However – if you are told that you have an up to date java installation – and that you have Java 7 Update 10 – please read *this blog post on Java Vulnerability* – because at time of posting, J7U10 has a zero-day exploit – which leaves you vulnerable to malware still.