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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Forcing Java Update on Windows

Posted by jpluimers on 2013/01/04

Sometimes the Java Update checker crashes in the middle of something.

The long solution to restart it is to logoff/logon or reboot/logon and wait for it to come up.

The short solution is to manually restart it (you probably need to be Administrator to do this though) using either of these commands:

"%CommonProgramFiles%\Java\jucheck.exe" -auto
"%CommonProgramFiles%\Java\Java Update\jucheck.exe" -auto
"%CommonProgramFiles(x86)%\Java\jucheck.exe" -auto
"%CommonProgramFiles(x86)%\Java\Java Update\jucheck.exe" -auto

To keep it simple: The exact command depends (:

  • if you run on an x86 machine or not, or – on an x64 machine – which of the Java versions (x86 or x64) you have installed
  • if the jucheck.exe is in the Java directory itself, or in a Java Update directory

–jeroen

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