What is jusched.exe And Why Is It Running?
If you’ve looked in Task Manager and wondered what on earth the jusched.exe process is and if you can turn it off, then you are in luck. This process is the Java Update scheduler, which is a process that wastes memory all the time just to check once a month whether there are new updates to Java.
There’s a scheduled tasks feature built into Windows for this type of thing… the java update scheduler is obviously not being used for critical updates since it’s only scheduled to check once each month. Since I simply can’t understand why the process needs to waste my memory, it has to go.
What you’ll need to do is open up Control Panel, and then if you are in XP you can click on the Java icon, or in Vista you can click on Additional Options, and then click on Java.
Once you have the Java Control Panel open, select the Update tab, and then uncheck the box for “Check for Updates Automatically”
You’ll receive a warning message stating that if somebody finds a security hole in Java that it will take up to a month before you are protected from it:
Does anybody else think that the sentence should read “the fastest and most secure Java” instead of the way it’s worded?
After you click the Never Check button above, you’ll probably receive this error message if you are in Windows Vista, stating that it also hasn’t been properly certified to work with Vista in the first place. Just click that it works correctly.
That does make me wonder… I guess we’ll miss the update that fixes the problem with the control panel… or will we? What you can do instead is schedule a task to run monthly using the built-in Task scheduler. If you don’t care about updates to Java, then disregard the next part.
Schedule Java Update Check (Optional)
Just type in Task Scheduler into the start menu search box to open the task scheduler, and then click on Create Basic Task.
Follow the wizard along to pick a month and date, and then when you get to the “Start a Program” screen, use this as the path, adjusting if you are running a different version of Java. The key thing is that you run the jucheck.exe in your Java directory.
“C:\Program Files\Java\jre1.6.0_01\bin\jucheck.exe”
Now when the scheduled task runs once a month, or whenever you schedule it, you’ll get this dialog if there is a new version, or another dialog stating there are no updates to Java.
It’s actually somewhat ironic that there’s an update to Java on the day that I write this article…
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nice
Good tip. However, if Java finds an updated version… it will install a new directory inside the Java program folder pertaining to the new Java version and will also install a new Java Update Checker software. Will that be a problem?
Mine has these two directories since the update.
Java\jre1.6.0_01\bin\
Java\jre1.6.0_02\bin\
Or you could not use Java all together~!
thx you very much, hope it works perfectly :F
jusched is on my desktop and I can’t delete it. I have gone to control panel and unchecked auto update. not sure what to try next?
I was doing fine until I got to the “Schedule Java Update Check” section.
This instruction needs greater clarity:
“Just type in Task Scheduler into the start menu search box to open the task scheduler, and then click on Create Basic Task.”
I can go to Start / Search… and whether I go to “All files and folders…” or “Info in Help & Support Ctr”, a search on Task Scheduler does not lead me to the Create Basic Task option you show here.
I’m running XP Professional V 2002 SP 2
If you go under Start -> Control Panel there is a folder icon called Scheduled Tasks. Try working it from there.
…actually, it isn’t ironic – rather it is coincidental.
When writer was recommending us to turn off the Java scheduler because “it is obviously not being used for critical updates,” he received a message about a new security fix. This is an accepted form of irony expressing “difference or incongruity between what is expected and what actually is.”
Good points jason and chris. Also note that there’s a full stop missing at the end of Line 16.
Hey geek, have you ever gathered a list of these useless processes?
I could not access the internet until I terminated jusched.exe
Is it a bug or what?
Interesting how the latest version has up’ed the frequency from once a month to once a week :-p
Thanks for the wonderful site … your #1 Fan
Good tip! Thanks!
Nice tip
i tried add the new task the one geek told us above in the scheduled tasks but a message is displayed “unable to start the service”
what to do now…….
kindly help.
The funny thing is is that this program has been leaking memory, but Norton Internet Security has NEVER let it run, meaning my version of Java was WAY outdated!!! I deletetd it without a thought. I’ll go the website to update Java, as I do code in Java… and I thought I was just messing up the code when it didn’t work!!!!
Glad I decided to sort through my system tasks!
I went through all the steps and disabled it from starting up but it keeps trying to change back. I use WinPatrol and in the last 10-20 minutes have gotten at least 8 messages saying that a new Startup Program has been detected and asking if I approve of it. I keep saying it no but this little bugger is persistent. Any ideas?
you can spend far less time and be more effective by going to run, opening msconfig, and clicking the start-up tab, simply uncheck the jusched box. and away you go
lol @ russell
exactly.
Awesome!!! I’m going to bookmark this site. It’s wonderful! Thank you for the helpful info on processes and which ones I don’t need, as well as how to remove them. Awesome!!!!!!
Grateful “Hugz”!
- Angelvoice 0:-)
You might point out that the UPDATE tab of the Java Control Panel doesn’t even appear unless you run it as an administrator. Took me a little while to figure that one out.
Perfecto….just the info that i was looking for… nothing more nothing less. Great guys! Thanx
Terrific write-up! This is my first visit to your website, but it definitely won’t be the last.
(old geezer stuff now…): I’ve been a computer pro since 1969 (that’s right — 1969!). I’m an ex-IBMer and systems programming consultant on IBM mainframe operating systems (not applications). In all those years I’ve seen less than a half dozen technical write-ups that were so clearly written without leaving ANYTHING out (except what I’ve written, of course, LOL).
Keep up the great work!
Russel~ If you noticed, the Vista MSConfig box does not have the check boxes next to the applications. This
must differ between XP and Vista.
Thank you!
Thanks so much for the way to get rid of that danged jusched – it keeps locking up my computer when I try to shut down. Thanks!
Thanks for the fix!
Thanks for this. Now that’s one less “background” program I have running. All I need to do is figure out why my “Program Updates” doesn’t want to work right. I keep getting “An error occurred. Error # -5″. I went to consumer.installshield.com and found the error. I followed the steps but kept getting the same error. Also, I don’t know (and can’t seem to figure out) how to “add” programs for it to find updates for. It only list one program under the “Change Update Settings” which is “InstallShield Update Manager” and that’s it. Any help would be greatly appreciated.
Thanks,
NavyAICS.
was doing fine until I got to the “Schedule Java Update Check” section.
This instruction needs greater clarity:
“Just type in Task Scheduler into the start menu search box to open the task scheduler, and then click on Create Basic Task.”
I can go to Start / Search… and whether I go to “All files and folders…” or “Info in Help & Support Ctr”, a search on Task Scheduler does not lead me to the Create Basic Task option you show here.
I have XP home
and I tried under Start -> Control Panel there is a folder icon called Scheduled Tasks. Try working it from there. and still no “Create Basic Task”
Love your web page. Thank you for all your help. Don
This is now unnecessary. It happened to be the update that was installed in this article (6u2) where jusched.exe should exit after checking for updates.
(Disclosure: I work for Sun.)
fine… i had this problem… thanks for ur kind information…
Thanks for this, it’s quite handy. This is definitely a process that has bothered me.
Thanks — I think — I’m not too savvy re this stuff. I copied this:
C:\Program Files\Java\jre1.6.0_01\bin\jucheck.exe
into the Update Java window, then ‘Task’, then ‘Run’ — was this right?
And then in the ‘Start In’ box, I copied *this*: “C:\Program Files\Java\jre1.6.0_03\bin”
Right?
Please notify of followup comments
thanks-easy to follow-appreciate the help!
good one
It would so nice of Sun to add some option to check from time to time when/as a java vm is starting…
Hehe Thaaaanks..
A little perspective here, folks:
This program uses only 84K (only three processes running on my XP system are smaller), and no CPU cycles (presumably it does know to run only once in a while). In other words, it isn’t slowing down anything at all. Personally, I’d like to have Java updated whenever a new release comes out. This saves me from checking all the time, and its cost in terms of system performance is infinitesimal.
I also have stopped this process from running constantly. However, my way of making sure I have the latest version for this (and many other apps) is by using Secunia’s (the famous security org) free Software Inspector. It runs from your browser (nothing to install) and will tell you if there is an update available for Java (+ Flash, Quicktime, iTunes, Skype, Firefox, Opera, IE, etc). You can even sign-up to have them periodically send you a reminder email so you remember to return to their website and run the software inspector. The URL is:
http://secunia.com/software_inspector/
does any one know a parameter to add so that it continues the update automatically?
@ joe on my system it uses: private bytes 1368k, WS private 952k and handles 55,
if you have a lot of these “unessasry” processes running all the time it will slow your system down.
There are two reasons a process will slow your system down: the memory it takes up and the CPU cycles it’s using. As far as I can tell, this process takes very little memory (0.0084% of my 1 GB of RAM) and virtually no CPU time. How is this slowing my system down?
I’m all in favor of eliminating unnecessary processes, but I think this one is useful and almost completely free in terms of system resources. You don’t need to get rid of absolutely every tiny little process just because it’s there–that’s just obsessive.
On the other hand, the above comment, “Another Update Alternative” gives you another option. But I, for one, don’t want to let any company’s software know what’s on my PC, besides their own product.
I thought that it was a virus process until I read this.
Thank you for a clearly written, well-illustrated tip on disabling the jusched.exe process. I had not heard of your site before, but I have now added your home page to my Favorites and will check back often. /Bill
Agreed it uses little memory/processor but every startup process has a boot time cost (small yes) and the issue of clutter and clarity in your process list is an important one, easier to track down the grumblies (malware) if unecesary processes are expunged. Plus anythign runnign that doesnt have to, has the risk of a mem leak or exploit so it is good practise IMHO to cut down on stuff.
It takes longer for boot time to process all these. Keep in mind, EVERY program you install wants to check for updates on the web. It will also take time whenever it decides to check via the web, which is not configurable. I wouldn’t worry so much about getting rid of the jusched’s and the Reader_sl’s of the world if the would let me configure them for 2 AM webchecks.
I found this forum so I could get rid of this in the startups for all my users. I roll out Java updates myself and don’t need the Java program to do it for me. I’m looking for a group policy to kill all extra startups.
Useful info, thanks –
These snide programs bug the cr@p out of me, I have probably 200+ applications of my PC and what if they all installed their own updater…
And I only installed java ’cause websites forced me to…
[halt: end of rant]
I keep getting this warning that jusched.exe has encountered a problem and needs to close. I did what you said to do but then it still comes up. What’s with that?
was doing fine until I got to the “Schedule Java Update Check” section.
This instruction needs greater clarity:
“Just type in Task Scheduler into the start menu search box to open the task scheduler, and then click on Create Basic Task.”
I can go to Start / Search¦ and whether I go to “All files and folders¦” or “Info in Help & Support Ctr”, a search on Task Scheduler does not lead me to the Create Basic Task option you show here.
I have XP home
and I tried under Start -> Control Panel there is a folder icon called Scheduled Tasks. Try working it from there. and still no “Create Basic Task”
What about the other advanced settings, such as “automatically D/L jme. Theres other auto stuff as well that I put “prompt” instead of the default.
Thanks
yes i do believe it should read “the fastest and most secure Java” instead of the way it’s worded…nice fix
Your alright! Thank You! Please continue on! Best of Luck!
I’ve used advice from your site many times, hasn’t failed me yet, great work people !!!
Hi everyone i know i am going to the bottom of the list but for all of you in here listing.
“I can’t find it ” this was done on Windows Vista the Basic Task is only on vista,
Anyway thanks Geek works like a charm.
It always adds a new directory when updating Java…. it’s completely fine.
Fantastic – precisely what I was looking for. Many thanks for spending time sharing your knowlege
another way. just go to “control panel” then click “change start up programs.” click “show for all users” then select java (there should be a description on the right so make sure you are removing/disabling the right program/task.) then just click “remove” or “disable.”
note: you need windows defender to do this. not sure.
Go into Control Panel, click on Java, click on “Search for updates now”.
You can do that whenever you feel necessary.. With love
Great topic but I am having a few problems. First of all, when I click on Control Panel there is no Java icon. I know that Java is installed on my computer but I cannot access any sort of ‘Java Control Panel’ as you spoke of early in your article. I am running XP home version.
Any help would be great.
Cheers
Blake,
First of all check that you have a problem with jusched.exe. Open the Windows Task Manager and see if it is running. If it is, you might want to go to java.com and make sure you have the latest version of Java running.
In any case, it’s possible to run the Java Control Panel without going through the Windows Programs or Settings menus. It should be called javacpl.exe and lives in a path something like “C:\Windows\Program Files\Java\jre6\bin\”.
Tom,
Thanks for the help. I visited java.com and found I was already running the most recent java update. Also, jushed.exe is running everyday in my task list. I sometimes end the task but it shows up shortly after anyhow. After visiting the site a java icon appeared in the bottom right hand corner of my taskbar and I found the java control panel there. I cancelled the automatic updates so that is fine. But once I began the second section I became a bit lost. As far as I can tell there is no such thing as ‘Task Scheduler’ on my XP. I found ‘Scheduled Tasks’ via XP’s control panel however and figured it was similar. Not sure if that is the case but while I was trying to figure out how to schedule a java task I noticed something interesting in my java folder. Within the Java folder are 4 other folders with names as follows:
jre1.5.0_09
jre1.6.0_03
jre1.6.0_05
jre1.6.0_07
It appears that these are all the same but perhaps different updates? Do I need all four of these or is that just overkill. When I was trying to schedule my Java task I had no idea which of these four folders to select from as they all seemed rather similar.
After saying all of that however, is it recommended that schedule java updates (because I will likely forget to do it manually)? I am barely computer literate and have little idea what java even does.
Thanks again.
Blake,
1.6.0_07 is currently the latest version. 1.6.0_06, for instance, was not a security update so wasn’t automatically downloaded by jusched.exe.
As for whether it is worth disabling. You’ve got to realise what proportion of physical memory it is actually using. It’s actually quite difficult to work out how much memory a process is using, because it will share with other processes. In the article’s screenshot, jusched.exe has a private working set of less than one meg. On a 1 GB machine that is less than 0.1% of physical memory.
On the other side, missing a security update is not good. Personally, I configure the update to check daily (and I know when the updates are coming out).
Good tip. Thanks.
Thanks for this tip! Greetings from holland
Great tip, thanks.
Some of you say it’s ridiculous to shut down a program that uses up few CPU cycles and eats so little memory – well, for many of us, that’s not the issue.
The issue is that jusched.exe seems to hang and start eating a LOT of memory – and won’t let you shut down your computer when you want to, without terminating jusched.exe first.
Well, that’s the issue for me, anyway.
As mentioned before: great tip – keep it up!
Ahoy, matey! I be here as one lucky fellow (accordin’ t’ Google, ‘tleast) trying to find what that landlubber jusched.exe were doin’ in me processes. Thanks to yer help, Java Update has walked the plank. ARRR!
Windows application naming conventions really make me an angry kitten. Somewhere there is a document called “Naming to obscure use from users”. Why, on a brand new operating system am I still having to Google processes with names like “jusched.exe”?
Alot of us in xp land have to click on start/control panel then on other control panel options to get the java icon up.
Great site! Its refreshing to hear from ppl who know what they’re talking about.
almost on topic -> There’s a helpful app called “JavaRa” for maintaining Java (i.e. removing old versions etc..) found here: http://raproducts.org/
From the site: “JavaRa is a simple tool that does a simple job: it removes old and redundant versions of the Java Runtime Environment (JRE). Simply select “Check for Updates” or “Remove Older Version” to begin. JavaRa is free under the GNU GPL version two.”
All the best & once again, well done on a really helpful website – I’ll be sure to pass the URL on!
I have updated Java this week [Dec 5 2008]. When I try to get the Java control panel I am given the message “unable to access”. What tdo I need to do to be able to access. I am running XP home with SP3, in Administrator mode.
If this was posted already, sorry, I thought I read all the comments.
After you go through all the actions to remove jusched from tasks and it is is still there after reboots/restarts, run msconfig>startup and lookk for it there also. Uncheck it.
In XP, I managed to disable jusched.exe as instructed, but could not get Task Scheduler to run jucheck.exe monthly. An error message stated there was a permissions problem
Thanks so much! I’ve always wondered how to get rid of this memory waster. I really appreciate the time you took to put together such a nice article.
Hello.
What is ‘ Task scheduler’ in Dutch? I have a Dutch computer and I can’t find it >_
The info I just found out about pertaining to juiced.exe help greatly, without web sites like this one the so called ‘user friendly experience’ would be an unknown.
Thanks again
very best regards Mick.
Thanks. Useful info. It worked.
Just wanted to add that when I went in to Control Panel>Additional Options, Java did not appear. To get to it you need to click on programs in the left column.
Also wanted to add that if you are scheduling the updater using task scheduler when you get to the part that you need to enter “C:\Program Files\Java\jre1.6.0_01\bin\jucheck.exe” you should check if this is the correct path on your PC.
For me it was “C:\Program Files\Java\jre6\bin\jucheck.exe”. I am assuming that it always rights to this location (assuming you did not alter it at instillation), the only thing that changes in the version you are running.
I just did a clean install of XP and hadn’t installed JAVA yet. On reboot after updating Adobe Acrobat 7.0 PDF.Pro, I got the pop up juschedt.exe. A Google search brought me to this site concerning jusched.exe but no mention of juschedt.exe. The extra “t” concerns me as well as the “Unknown Publisher” and lack of “valid digital signature” warnings.I open MSConfig and found both of the above under “Startup” and unchecked the boxes next to them.Windows told me to reboot for the changes to take effect so I did. After reboot,Windows tells me I made some changes to how the system works and I have to change it back. What’s up with that? There’s also a lot of “checking” going on in there. No wonder it takes longer and longer for my computers to start up.Do I go ahead and make the changes and then select the option that no longer warns me?
TIA Ed J.
Additional information regarding juschedt.exe; I decided to go ahead run it to see what occurred and AVAST Antivirus tells me there is a Trojan Horse virus imbedded. Avast seems to find Trojan Horses in a lot of places that other virus protection didn’t find so I’m not sure if it’s a false positive or not. My concern is that I still cannot find juschedt.exe anywhere except on MY computer?
Ed J.
heh, i found this site by accident looking for more info on jusched.exe. I’m doing the exact same thing But One this you might change:
Instead of manually using jusched.exe to check for updates i recommend you use jucheck.exe instead. This will do a check for the latest java version as well but the difference being this will check then kill itself. jusched.exe will remain until you restart.
I know both of these exe’s use hardly any resources but when your working with an old computer every little bit helps.
The following is copied from http://java.com/en/data/index.jsp
[snip]
If you wish to disable the collection and transmission of this data, you may choose to download and install the full ‘offline installer’ [http://java.sun.com/javase/downloads/] version, and make sure you are not connected to the Internet at time of installation.
[/snip]
Thanks for the info on Java. I decided to turn off the auto check and created a shortcut and check it myself once a month or whenever I remember. This avoids having it run in the background everyday and gives me an easy way to do it myself.
Ed
If all the software vendors start using the same Microsoft’s excuse to put the auto whatever update task in the PC’s start up so it can installed anythings it claims as security protection, or get your personal data without your permission, soon we all will be running nothing but these GOD DAM update.exe programs on the desktop and need 1TB RAM just to start up the OS. Why can’t they let us figure out and run update on their owns. We have a brain too, you know.
Great info, though one thing not mentioned is on that day the task runs, it jusched.exe will keep running after the udpate test. (The guy from sun who said it’s fixed was less than accurate)
Sadly this *is* all microsoft’s fault. It began with the little background task… I forget the name … who’s soul purpose was to load the common office DLL’s into memory. (thus giving users the APPEARANCE that word loaded faster than word perfect)
Other companies picked up on this, and now in the aftermath, everyone thinks it’s OK to continuously eat resources (mem, cpu, bandwidth) and behave as if the whole computer is theirs.
When I turn off the automatic updates, they imeediately and automatically turn back on. I don’t know what to do!
NICE! I love killing memory wasters! Rock on!
i always wanted to turn this option off because it crashed my youtube videos and i am assuming because it was updating in the background, so thank you for this little tutorial.
I am with Mathimus, my updates keep turning back on and the windows task manager says my computer is at 100% use. It is slowing everything down. I have used msconfig to turn off the processes and it still runs. Also running is iexplorer.exe and everytime I close it, jusched starts up and starts ie again. Really frustrating to say the least! Any help is greatly appreciated.
I have been doing all of these things to get rid of juschedt.exe but it keeps reappearing. It seems to be running a virtualization of IE with it. Every time I close the IE that is running in the background, jusched pops up and reopens the IE that is running in the background. It does suck the life out of the resources on my computer and I can’t seem to stop it. Also is there a difference between jusched and juschedt.exe? Any help with save much stress.
I’m a Vista user, not by choice but I did use a bit different path,
“C:\Program Files (x86)\Java\jre1.6.0_01\bin\jucheck.exe”
Reading your ‘How-to’ I have done an innocent variant: I create a text file in my java directory named “update.txt”, with the text: “Update java, please”; then I created a new task for windows scheduler with this properties:
run “C:\Archivos de programa\Java\jre6\bin\update.txt”
With this I will be thinking in updating java the next month.
It would not hurt to run ” netstat -b” from a command window: (click “start” “run” type “cmd” and in the DOS window type “netstat -b” enter). Don’t type the quotation marks I put in this comment. Look for an entry that has [ jusched.exe ]. Across from it will be an IP address, mine was 204.246.230.81 and it made a http connection on TCP port 81. Get online and enter that IP address into a “WHOIS” service page (just Google: WHOIS IP). My address led to “Global Crossing” in Utah, which is a data mining company. They got press a while back for using cleverly crafted filenames to trick people. You make your own assumptions about data mining companies, but I believe the data they collect is being stolen from you, and not necessarily for your benefit. Maybe Global Crossing is just providing the update service, but I don’t think so, because I get my updates from an IP address registered to SunMicro. I think somebody is trying to make a little money on Java, and who is getting the information Global Crossing collects and sells for profit?
the jusched.exe on my pc was going to 75.5.124.55
When I traced it I turend up the following:
IP address [?]: 75.5.124.55 [Copy][Whois] [Reverse IP]
IP country code: US
IP address country: United States
IP address state: California
IP address city: San Francisco
IP address latitude: 37.7645
IP address longitude: -122.4294
ISP of this IP [?]: SBC Internet Services
Organization: WELLS FARGO BANK
Host of this IP: [?]: adsl-75-5-124-55.dsl.pltn13.sbcglobal.net
Whats WELLS FARGO doing “Updateing Java”?
Looks like a bit of tom-foolery to me.
I have forward them the information and await thier response.
After disabling this, my computer CPU cycle dropped about 10%.
The moral of the story|: Things are not always as they appear
Ran netstat -b and selectcing one of the several whois ip, “my” jusched.exe has an IP of 208.22.87.83, the OrgName is Sprint, in Reston, VA (I’m in VA). There’s been least 3 different end locations in these postings – what’s it saying? Someone (beginning to wish it was me) reloaded my XP Pro onto a new hard drive and Java is 1.6.0_13-b03 which may, or maynot be the latest version (Sun says yes, elsewhere it’s _14). I think it’s wierd that we’re all getting IP addresses to various unrelated sites. In itself this is a reason to disable jusched.exe. BTW, SFFROG, I, too, am somewhat a geezered geek having also started programming in 1969 (went on to being an Oracle DBA).
thank you for the fix…
That was easy. Thanks
It seems I can’t even get past step 1. :S As it turns out, when I open Control Panel > Additional Options, as stated for Vista users, I find a list with the following four components : NVIDIA PhysX, Intel(R) GMA Driver for Mobile, Quicktime, and Adobe Gamma. Java simply doesn’t exist?
If it helps, my system specs are listed below:
Microsoft (R) Windows Vista Home Premium
Version 6.0.6002 Service Pack 2 Build 6002
Manufacturer Sony Corporation
System Model VGN-NR360D
X86-Based PC
Processor Intel(R) Pentium(R) Dual CPU T2370 @ 1.73GHz, 1733 Mhz, 2 Core(s), 2 Logical Processor(s)
Installed Physical Memory 2.00 GB
Total Physical Memory 1.99 GB
I clicked by accident, forgive me. Continuing … :
Available Physical Memory 1.11 GB
Total Virtual Memory 5.89 GB
Available Virtual Memory 4.87 GB
My computer is also a Sony Vaio VGN-NR360D, to be more specific. Sorry if I gave too much information.
Thanks