Oracle's Java runtime environment includes a Web browser plug-in. The Web browser plug-in runs Java applets on Web pages. Java stores the downloaded applications, applets, log files and other data on your computer in its cache. Java can load these applets from the cache in the future if they haven't changed, reducing the amount of data it needs to download and speeding up load times. If you want to clear Java's cache from your computer, you can do so using the included Java Control Panel. Java's cache is distinct from your Web browser's cache.
Click "Start." Click "Control Panel."
Click "Programs" in the Control Panel window and click the "Java" icon.
Click the "Settings" button in the Temporary Internet Files section at the bottom of the Java Control Panel window.
Click the "Delete Files" button in the Temporary Files Settings window that appears.
Click "OK" to delete the files.
Tips & Warnings
- You can disable the cache entirely by clicking the "Keep Temporary Files on My Computer" check box at the top of the Temporary Files Settings window.
- Click the "View" button in the Temporary Internet Files section in the Java Control Panel window to view and manage the individual temporary files stored on your computer.
How to Clear the Java Web Start Cache
Use the Java Control Panel to clear the entire Java Web Start cache, or remove select applications via the Java Cache Viewer.