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Error 25099: Unzipping core files failed.

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Joined: 2009-07-20

I also had terrible problems with error 25099. I used the Java solutions to no avail. I could not find JQS.exe using the task amager or search. I used JavaRA twice. Again no luck. I deleted all files in the java folder but still the dreaded 25099 error kept appearing. I did wonder if using explorer 8 could be giving a problem so I uninstalled it using the control panel. I then used the safari browser to access the Java website and wow! it downloaded without a problem. I reinstalled explorer 8 and everything seems to be running normally.
I just thought I would share this. It might help someone else out there.

Joined: 2009-07-18

I was really getting tired of trying to find out what to do about this error. JQS.exe was nowhere to be found. I couldn't get into my favorite chatroom and really missing it. Thanks to Deep Dhyani who's in the Google group IT Help Desk, and to derekbrown_1989 I was able to solve the problem. I am new and it took me a while just to register and figure out how to get in here to post, but I am so so so grateful for the help of these two wonderful people, I didn't mind at all. Also to the members who reported their success with this particular solution,which caused me to try it first, I would like to echo the words of rij09....Thank You, Thank You, Thank You!!!

My post meant for all members,but especially to derekbrown_1989. kywin

Message was edited by: kywin

Joined: 2009-07-17

Could any person help with thie error I keep getting in trying to reinstall java on Thinkbroadband speed test?

I have successfully operated the speed test for a few years and advised my friends to do likewise and this has proved valuable in discussions of speed with our ISP's.
However in the last few days I have been unable to operate the speed test. I
believe this is because of the JAVA applet?

I have spent many hours following the Java remove/install process without
success. I have followed the procedure on Thinkbroardband site a number of
times. I have removed java via Add/install and cannot reinstall without an
error message Error 25099-Unzipped core files failed!

I have followed the Java help and am unable to find/remove java jqs.exe from
the task manager or the command prompt. I have tried to remove (successfully
but not the jqs.exe) and reinstall but I am not able to successfully
reinstall without the error 25099

I have spent many hours following the Java remove/install process without
success. I have followed the procedure on Thinkbroardband site a number of
times. I have removed java via Add/install and cannot reinstall without an
error message Error 25099-Unzipped core files failed

I have followed the Java help and am unable to find/remove java jqs.exe from
the task manager or the command prompt. I have tried to remove (successfully
but not the jqs.exe) and reinstall but I am not able to successfully
reinstall without the error 25099

Any advise would be much appreciated. thank you

Joined: 2009-07-18

Hi tom, see derekbrown_1989 above. Worked great for me,kywin

Message was edited by: kywin

Joined: 2009-07-15

I have uninstalled Java, checked the processes and it's not there, rebooted the computer. Even after doing all this, I cannot download Java as the 25099 error pops up meaning I can't unzip the installation files. Now what?

Joined: 2009-07-03

I've been struggling to install the update for several days. When I finally found this thread I searched but I didn't have any jqs.exe on my system, so no way to use that solution. Finally this morning I see that some users have succeeded by getting all Java files out of "Program Files;" I moved mine out to a different drive and . . . jackpot. The update is up and running. Thanks to all who've discovered and shared the solutions to this apparent major problem in the new java builds.

Is it possible that this problem is related to Vista compatibility requirements? I'm running WinXP SP3.

Joined: 2009-06-18

Thanks derekbrown_____1989

Joined: 2009-06-13

Thanks, Derek Brown! ( I signed up and logged in just to tell you that.)

I did not see jqs.exe, so I was stumped, too. I sent the Java Help people a link to this forum, so they should add this solution.

Phooey on Java for time wasted with this install.

Joined: 2009-06-16

My sentaments exactly...

Joined: 2009-06-11

I'm happy for all of you that had success with error 25099 by killing jqs.exe. I however, have not been so lucky. When I uninstalled earlier Java, it was successful, but since then I have tried task manager (where it did not appear), cmd, uninstalled Norton, removed firewall, and tried installing offline, all with no success. Please help if you can. Frustrated!!!

Joined: 2009-06-11

I must respond to my own querry. After reading further (derekbrown), I tried his way... THANKYOU THANKYOU THANKYOU

Joined: 2009-06-06

Unbelievable. Like all of you I have had one heck of a time getting Java to update. After reading the posts here I tried going to Windows Explorer and deleting the Jre6 folder. I then retried installing Java 14 and just like everyone said, IT WORKED. Many thanks to everyone, without this information I would have never figured it out alone.

Joined: 2009-05-19

Guys, I have tried various ways of solving this problems from webs and solutions itself but they don't work for me. Here is how it might help it happens to failed trying other ways. This step might help you if you cannot find jqs.exe in you computer Task Manager.

1. Start Task Manager by clicking Ctr l+Alt+Delete keys on you keyboard.
2. Open Task Manager.
3. Click on Processes tab.
4. Find and select the process javaw.exe if you cannot find jqs.exe.
5. Click End Process button after selecting javaw.exe.
6. Close Task manager window

Now it should be fine.

Joined: 2009-06-04

Hi all, I also have the same error:

Ran JavaRa to remove old installs.
I do not have Java Installed.
Do not have any Java Services
Do not have jqs.exe, nor javaw.exe running in Task Manager

I do have C:\Programe Files\Java, and when I try to delete it, as per usual, "Files are in use"?

When I try to install jre-6u14-windows-i586.exe, it gets to the end and I get the Error 25099.
So what do I do next, besides forget about running Java?
Cheers and TIA

Joined: 2009-06-12

Hi all, I have the same problem.

The only difference is that I do not have a folder at C:\Program Files

I've run the JavaRa tool twice and checked the log; it revealed no entries.

Any ideas what is next to try?

Joined: 2009-05-06

I found the way to fix this problem.
Go my computer
Go to Program Files.
Find Java Folder and delete it.
Then after deleting java folder go to your
Recycle Bin and delete it from there also.
Then go back to OR Link below
& Download JAVA that is how I fixed this problem for me.
[u][i][b]MY COMPUTER IS WINDOWS XP!!!!![/b][/i][/u]
[u][i][b]I DIDN'T TRY DELETING I LEFT BE.[/b][/i][/u]

Joined: 2009-05-15

I tried all of the above methods and the only one that worked is the one posted by derekbrown_1989. I signed up just to thank you. THANKS
When I tried to delete it from my C:\Program Files\Jave it would not let me delete. Said it was in use. So I had to drag it to the Recycle Bin and delete it from there.
Then just downloaded the newest Jave and all is well. Love it when a plan comes together!
THANKS AGAIN...........

Joined: 2009-05-06

ur welcome hope u have fun

Joined: 2009-04-09

The people at taught me how to fix this:

1. Go to
2. Click the "Free Download" link in the upper left part of the screen.
3. When asked to run or install the application, choose "Run", "Install", or "Yes".
4. After Firefox is installed, you will want to make sure you have the latest Java software installed. So, using the Firefox browser, go to
5. On the left side of the Java website page, you should see the link to install the latest version.

Joined: 2008-03-14

Classic !!!

When I go to and press the prominently displayed download button, I'm taken to a page that spins the little dots while it "detects Java".

I have :
Java Plug-in 1.6.0_14-ea
Using JRE version 1.6.0_14-ea-b04 Java HotSpot(TM) Client VM

And this is what I get :

[i]Sorry! We couldn't find the document requested.

The file that you requested could not be found on this server. If you provided the URL, please check to ensure that it is correct.[/i]

Well done!!!

Joined: 2008-11-26

I just had the same problem

After a power cut java update 10 decided the game was up, I attempted to uninstall and reinstall

I solved the problem by killing the task


Which was still running as service despite a complete uninstall of all java plugins

I did not need to empty the java installation folders

Joined: 2008-12-07

While attempting to upgrade Java 6 to 11 I received the same error then things got worst. I spent about three hours getting the mess corrected, as the uninstall didn't remove everything. In the end, JavaRa saved the day. It removed all the old crap and the install of Java 6-11 was perfect.

Make it a great day!

Never, ever approach a computer saying or even thinking "I will just do this quickly."

Joined: 2006-04-02

I got this error several times. I was trying to install the public JRE as part of the 1.6.0_10 install, then I tried downloading the JRE from and installing it separately. Each time, I deleted all the Javasoft registry keys first.

What finally worked? Well, for some reason, Java Update (jusched.exe) was still running even though I uninstalled my previous JDK and all JRE's - killing it from the Task Manager did the trick. (Though I probably could have terminated it properly, through the Service Control Manager.)

I then tried installing the JRE downloaded from and it worked. I have not tried the 1.6.0_10 JDK since killing jusched but I'm figuring it would probably have worked too.

Joined: 2009-03-18

I found that I also needed to kill jqs.exe in Windows Task Manager in addition to removing all Java files and directories. After that, Java 6 installed fine.

Joined: 2009-04-23

I did exactly what you did, as well as using the "download offline" option on the Java help page. This worked - thanks!!

Joined: 2006-12-09

Can someone please try to help me solve this? I really need to install Update 10 on this machine and I simply can't afford to do a full OS reinstall just for this given that it's the Domain Controller for our network.

Any help will be greatly appreciated!

And loving it,

-Qu0ll (Rare, not extinct)
[Replace the "SixFour" with numbers to email me]

Joined: 2008-07-09

I would make sure the %ProgramFiles%\Java\jre6\ and %APPDATA%\Sun\Java\jre1.6.0_10\ directories are empty.

Are any of the Java files still in use? Try rebooting or using ProcessExplorer to find files that are still running out of the jre6 directory.

Joined: 2009-07-08


And yes, I was shouting that as loud as I could. It would be nice if the Java people would read this forum, for their answer to 25099 completely assumes that uninstall will clear the Program Files\java directory, which at least on my machine, it does not, and I went through their posted solution over and over again. Your solution (a missing step from their write up) has only been up for a day short of a year. Maybe they are waiting for it's one year anniversary before making it part of their post? I wasted at least an hour depending on their information, and you cleared my problem up in a matter of a few minutes. Once again, THANK-YOU!