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5 Replies Latest reply: Jan 24, 2013 8:04 AM by 986955 RSS

JRE Uninstall string for v7 all the same - but do not work

985070 Newbie
Currently Being Moderated
We have multiple Windows 7 machines running v7u1 thru v7u10.

I found the uninstall string and was able to run MsiExec.exe /X{26A24AE4-039D-4CA4-87B4-2F83217010FF} on my own machine to remove the software successfully.
In looking at u6,u7,u9 and u11 installations, I noticed the Uninstall Strings are exactly the same. But when ran on those machines, the system states "This action is only valid for products that are currently installed".

However, I can remove the version from the Control Panel.

So what are the correct uninstall strings for v7u1 thru v7u11?
  • 1. Re: JRE Uninstall string for v7 all the same - but do not work
    985179 Newbie
    Currently Being Moderated
    1st question. Why uninstall?

    You can just install the new version over the top (assuming you did a normal install previously)

    The uninstall string is slightly different for each version look at the last 5 characters in the string it has the version number IE. 17009 or 17010 etc

    So for 1.7.0.09
    MsiExec.exe /X{26A24AE4-039D-4CA4-87B4-2F83217009FF}

    1.7.0.10
    MsiExec.exe /X{26A24AE4-039D-4CA4-87B4-2F83217010FF}

    Hope that helps.
  • 2. Re: JRE Uninstall string for v7 all the same - but do not work
    gimbal2 Guru
    Currently Being Moderated
    982176 wrote:
    1st question. Why uninstall?
    Whats your second question then, huh? ;)

    Uninstalling first is a safety strategy that has been applied to Windows environments since its inception. In the case of Java, upgrades are not guaranteed flawless depending on the environment it installs in, just take a stroll through the history of this particular sub-forum to see the proof. I must say that even though I know what I'm doing, I too tend to just uninstall all existing runtimes and JDKs and then reinstall the latest ones; I tend to have multiple installed being a developer (32 bits, 64 bits, runtime, JDK) and I'd like to have to prevent doing system restores because the stars are not aligned properly :/
  • 3. Re: JRE Uninstall string for v7 all the same - but do not work
    984793 Newbie
    Currently Being Moderated
    All of our users are local admins and tend to install whatever. This leads to a messy environment and we don't always know which version of Java is installed. So, to address that, I created a small script that scours 'HKLM\software\microsoft\windows\currentversion\uninstall' for Java entries, reads the uninstall string then runs the reported uninstall string. The assumption here is that the uninstall string will be an MSI command. (All the machines & versions of Java used the same format.)

    This is a Windows 7 Enterprise (32-bit) environment, but the script also works on 64-bit installations of Windows 7 Enterprise.

    I've tested this with 7u11 and went as far back as 6u21. It should work with just about any version that uses MSI for uninstalling.
    @echo off
    setlocal enabledelayedexpansion
    
    echo. & echo Checking for Obsolete Versions of Java...
    
    for /f "usebackq tokens=*" %%a in (`reg query HKLM\software\microsoft\windows\currentversion\uninstall`) do (
         rem echo a is %%a
    
         for /f "usebackq tokens=2*" %%b in (`reg query "%%a" /v DisplayName 2^>nul ^| find /i "java"`) do (
              rem echo b is %%b
              rem echo c is %%c
    
              for /f "usebackq tokens=3,4" %%d in (`reg query "%%a" /v UninstallString 2^>nul`) do (
                   echo.     Removing %%c
                   rem echo d is %%d
                   rem echo e is %%e
    
                   set uninstallcmd=%%e
                   set uninstallcmd=!uninstallcmd:^/I=^/X!
    
                   rem %%d %%e /qb-
                   %%d !uninstallcmd! /qb-
              )
         )
    )
    
    :end
    endlocal
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  • 4. Re: JRE Uninstall string for v7 all the same - but do not work
    985070 Newbie
    Currently Being Moderated
    Thanks all - I will look at all of these and hope that works out!
  • 5. Re: JRE Uninstall string for v7 all the same - but do not work
    986955 Newbie
    Currently Being Moderated
    Great Script! This worked like a charm. For some reason though the script throws an error that says something like "Command not found "Version"" but it still works. I just chose to ignore the error and use the script as-is.

    Thanks for the work on this. this is by far the best way to uninstall java (or anything else!)

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