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just had UAC ask me if i want to use the update jucheck.exe Java (oracle), and i clicked no. If i use this update tool will it automatically remove the old java version or will it remain ? So should i remove and update manually or use Jucheck.exe ?

Thanks for any help

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The article Why should I uninstall older versions of Java from my system? states:

In the past, each Java update was installed in a separate directory on your system. However, Java updates are now installed in a single directory.

So ever since they started doing this, newer versions (or minor version updates at least) should overwrite older ones. However, it's highly recommended that you go to Add/Remove Programs (Programs and Features) and uninstall any older versions of Java (JRE) you spot except the very latest.

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