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Can installing Java twice cause any problems on your computer?

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#1 bigbrown411


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Posted 30 January 2014 - 02:11 PM

I got a message on my laptop saying that I needed to update Java. So I did, but it said I already have the newest version of Java updated. Then I go to Java to see if I have the newest version of Java updated, but it says Java is unavailable due to it being uninstalled or unavailable. If I go onto the official Java page and download + install Java even though I already have the updated version of Java (or at least that's what my computer says), can any problems occur from this?

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#2 zingo156


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Posted 30 January 2014 - 02:22 PM

If you download and install java again it will most likely tell you "you already have the most current version of java" and then close. You can click download and install again it should do no harm.


You might need to restart your computer to get this message to go away: "Then I go to Java to see if I have the newest version of Java updated, but it says Java is unavailable due to it being uninstalled or unavailable."

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#3 Animal


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Posted 30 January 2014 - 02:31 PM

Just to be sure you can go to add remove programs and uninstall all instances of Java. Then reinstall the latest version. If you are still having problems you can use the Java uninstall tool for older versions of Java if they still exist. You can also do a search for Java and you may have a remnant left behind in the folder of a long removed app.


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