The good news is that they are easy to resolve. In fact, you can troubleshoot most Java runtime problems in a matter of minutes, so, you can have a try.
To uninstall a program from Windows 8:
1. When in the "Start" screen, start typing "Control Panel".
2. Click on the "Control Panel" from the Apps search results. In the opened window select "Programs and Features".
3. In the Programs and Features window select the program you want to uninstall and click on the "Uninstall" button.
To remove programs and software components in Windows Vista from your computer hard disk drive:
, Control Panel, and then Programs.
2.Under Programs and Features, click Uninstall a program. The Uninstall or change a program window opens.
3.Select the program you want to remove.
4. Click Uninstall at the top of the program list.
5. Read and respond to any messages that may open while the software is being removed from your computer.