This may sound weird at first but it's worth a try
1. Try restarting the computer and starting it up in safe mode by pressing F5 a few times on
your keyboard when your computer starts up.
once it's done loading. An account named Administrator should appear click on
Administrator then once your account starts up and is done loading
disable the firewall by going to start, Control Panel, double click Windows Firewall a
windows should open then
click turn off [not recommended] click ok then goto java.com and try redownloading it if
that doesn't work then try going to
http://java.sun.com/products/archive/ and
downloading
and older version of Java like version 6 update 3 or even just 6 (id try just number 6)
and if that doesn't work try version 5 which may work.
2. Try deleting some files on your computer account but first we need to enable hidden
files or folders
to do this Goto my computer by clicking start on the start bar select My Computer
next click "Tools, Folder Options...
A window should then open click the tab at the top that says View then scroll down
to where it says Hidden files and folders select "Show hidden files and folders"
click Apply then ok
then finally try deleting the following files on your computer account
C:\Documents and Settings\account name here\Application Data\Sun
and C:\Documents and Settings\account name here\Local Settings\Temp
also try downloading ccleaner at filehippo.com
if you download and install ccleaner
when you open it if you have any saved game data from websites
like Kongregate, Miniclip, ect disable cookies for internet explorer by unchecking cookies
and for Mozilla Firefox click Applications and uncheck Cookies in ccleaner
after doing all that click Analyze and wait for the computer to stop scanning then Click
Run cleaner
then retry downloading and installing Java
3. Your internet router/modem might not me opened all the way so java cant install or fails
java uses the internet to install even the offline installation uses internet to connect once it
installs like if you goto a website like runescape java connects to the internet to load.
Try setting up your computer at a friends house to see if it works unless they have a
router/modem thats not opened all the way
if that doesn't work take your computer to a professional and tell them java is not installing
or working. If they can't fix it try
reporting a bug to java
and they might send you an email of what to do
and if any of this doesn't work then
I guess you might have to use a different computer with Java
email me at
craig_val@hotmail.com
for more help, if you don't understand some of this or any of it.
Search 
