BleepingComputer.com: Need Java!

I accidently deleted Java off my computer, because I had update number 5 (newest one is update number 11) and I heard number 5 was exploitable. So I completely removed Java through the add/remove programs feature. Then I went to Java.com to download the latest Java JRE. But, everytime after I download, and I try to install it, it says "preparing to install," then this message pops up: "this installation package could not be opened. verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid windows installer package." I had no idea that if I removed Java, it would be such a pain to get it back.

And I tried searching the faqs at Java.com, but it is no help. I've also tried downloading several different version, both online and off versions, and none of it works. I don't know how to get Java back on my computer, please help!

And remember, I know nothing about computers, so assume I know nothing, and explain every step please, thank you.

Oh, and I use Internet Explorer, that's all I know as far as that.

This post has been edited by solaris32: 05 April 2007 - 07:54 AM

Try downloading Java Runtime Environment (JRE) 6u1 from here and see if that works.

Java Runtime Environment (JRE) 6.0this should do the trick

* Scroll down to where it says "Java Runtime Environment (JRE) 6
* Click the "Download" button to the right.
* Check the box that says: "Accept License Agreement".
* The page will refresh.
* Click on the link to download Windows Offline Installation, Multi-language and save to your desktop.
* Close any programs you may have running - especially your web browser.
* Clear Java Cache
To Clear the Java Runtime Environment (JRE) cache, do this:

* Click Start > Settings > Control Panel.
* Double-click the Java icon.
-The Java Control Panel appears.
* Click "Settings" under Temporary Internet Files.
-The Temporary Files Settings dialog box appears.
* Click "Delete Files".
-The Delete Temporary Files dialog box appears.
-There are three options on this window to clear the cache.
o Delete Files
o View Applications
o View Applets
* Click "OK" on Delete Temporary Files window.
-Note: This deletes all the Downloaded Applications and Applets from the cache.
* Click "OK" on Temporary Files Settings window.
* Close the Java Control Panel.


It is possible that Microsoft JVM is still present on your computer.Check this as following: Start -- Run and type cmd. In the blac window type jview and ENTER. If Microsft JVM is present you will get version notification. If not present you wil get an error.

Please do the following if Microsoft JVM is present:
Download this tool to remove Microsoft JVM from your PC MSJVM Removal Tool

Save the file on your desktop doubleklick and allow it to store it into his own folder. Dobleklick unmsjvm.exe en follow these instructions.
Please also download this regfile RemoveJVM.reg.

Store the regfile onto your desktop doubleklick and allow the changes in your registry.



* Go to Start > Control Panel double-click on Add/Remove programs and remove all older versions of Java.
* Check any item with Java Runtime Environment (JRE or J2SE) in the name.
- Examples of older versions in Add or Remove Programs:
o Java 2 Runtime Environment, SE v1.4.2
o J2SE Runtime Environment 5.0
o J2SE Runtime Environment 5.0 Update 6
* Click the Remove or Change/Remove button.
* Repeat as many times as necessary to remove each Java versions.
* Reboot your computer once all Java components are removed.
* Then from your desktop double-click on jre-1_6_0_10-windows-i586-p.exe to install the newest versi

ok I'm downloading it now, but I have no java icon under control panel. and I went to the cmd thing and typed jview in the black box and I got th error message saying it wasn't a valid command. I have windows xp on a laptop if that helps.

OK Please than follow my instructions in installing it.

Yay! It worked! Now I can sleep! Major kudos to both of you

Good to hear you sorted it out!