Help Flashtool v0.8.6.0 startup error [ java.lang.UnsupportedClassVersionError

[Andima]

Today i updated my windows (32 bit) computer flashtool to the lestest version using. When i installing the "flashtool-update-0.8.x-0.8.6.0-windows.exe", i disabled "Norton internet security antivirus auto-protect"

After installation finished each time when i run the "Flashtool" i got this error. However i can run the older version without any issue.

How do i fix this issue?

java.lang.UnsupportedClassVersionError: gui/FlasherGUI : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
at com.exe4j.runtime.WinLauncher.main(Unknown Source)

 

[argedion]

I would try to remove the update and see if it works if not then I would remove the old and then reinstall the old and leave it be. One of the age old adage if it aint broke don't fix it. comes to mind here