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whenever I click on java control panel, nothing happens. I did

C:\Windows\System32>control java.cpl

still nothing happens. I installed Java 6 update 24(the latest update), did not help. how do I fix this problem?

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Do the symptoms continue if you try with a different user? –  Windos Aug 13 '11 at 1:01
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2 Answers 2

I once also had this problem with the exact symptoms.

The only operations that helped was to remove it using the Add/Remove software applet, reboot, delete the folder C:\Program Files\Java and then install it again.

This fixed it for me.

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Try opening "C:\Program Files\Java\jre6\bin\javacpl.exe" from an elevated command prompt (i.e. run as administrator.)

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surprise, nothing happened, no error messages, nothing, nada –  user157195 Aug 13 '11 at 0:04
    
@user157195, do you have any javaw.exe processes showing up in Task Manager? –  Windos Aug 13 '11 at 0:08
    
yes I have a few javaw.exe processes, they belong to other java procesess(netbean etc). opening javacpl does not change the count. –  user157195 Aug 13 '11 at 0:50
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