Jan 7, 2014

Java - How To Fix "javaws.exe missing" error after update

Oh Java, what am I going to do with you...

If you haven't noticed, the Java Runtime Environment loves to update itself frequently.  If you are using Windows, you may have come across this issue before.  javaws.exe is the executable for the Java Web Start application.  This is used with various products on the market to facilitate web enabled forms.

Unfortunately, Java updates can effect all sorts of other applications as well.

Why don't Java updates install fully?

Over the past year, this seems to be an ongoing issue for Windows users.  I haven't found an exact reason yet.

How to fix a bad Java update?

First of all, you can assess the damage by seeing if the "Java Control Panel" is still installed.  Go to Start->Control Panel:


You will either see just "Java" like mine if you have 64 bit Windows.  You may instead see "Java (32-bit)".  Either way, confirm that the Java Control Panel is still present.  If so, continue with Resolution #1, if not goto Resolution #2.

Resolution #1:
Open the panel and click the view button:


You should see a new Window.  At this point, you can select "Applications" from the dropdown box:


If you use an application that relies on the javaws.exe application, from here you can typically restore desktop links that utilize Java Web Start.  I have found this to resolve most inconsistencies between updates.

Resolution #2:

If in fact, you do not still have the Java Control Panel installed, you will need to fully uninstall Java.  This can be accessed in both Windows 7 and XP by going to Start->Control Panel.  For XP, you can go to Add / Remove Programs.  If you have Windows 7, go to Programs And Features.


After uninstalling, make a short visit to www.java.com to grab the latest release.  The site will look like this:

After installation, you may or may not need to re cache the shortcuts to your Web Start applications.  See Resolution #2 for more details.

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