If you open the applet as an administrator you can also change the settings, although you need to have, again, elevated administrator rights starting from Vista (otherwise it seems you can change the settings, but they aren’t actually saved). Anyway, if the feature is enabled (value “1”), the Java Control Panel applet will show the Update tab and show you the configuration, but you need administrator rights to see the correct update settings (and starting from Vista you even need elevated administrator rights to see the correct update settings). It’s the same thing with the Java update feature. It’s like configuring a setting Frequency to “Never” for example: there is no frequency, but in a broad sense it’s still a frequency setting’s value (“Never”). Note an enabled update feature doesn’t mean auto-downloading/updating is effectively active: disabling every kind of update setting is in a way also some sort of update configuration. Its value determines if the JRE’s update feature is enabled (value “1”) or not (value “0” or not available).
No update tab in java control panel windows#
This has to do with EnableJavaUpdate, a DWORD named value in HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Update\Policy (for the x86 version on x86 Windows or the 圆4 version on 圆4 Windows) or HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Update\Policy (for the x86 version on 圆4 Windows). Sometimes this tab is missing though (see picture below). This applet contains 5 tabs, the 2nd tab from the left being the “Update” tab. If you have a Java JRE (Java Runtime Environment) installed, you can configure it through the Java Control Panel applet.
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