How to fix my computer free?

[Kara_Evan]

My computer freezes while loading sites. I can't even load my favorite game runescape. It says Plugin running slow or something then says to stop plugin or continue. I have java 7 45 on windows xp with Mozilla Firefox. How can I fix my computer for free?? I'm really tired of it freezing.
I tink there is something wrong with my java plugin
think

[bobman]

Uninstall Java:
Click Start
Select Control Panel
Click the Add/Remove Programs control panel icon
The Add/Remove control panel displays a list of software on your system, including any Java software products that are on your computer. Select any that you want to uninstall by clicking on it, and then click the Remove button.

Reinstall from here http://java.com/en/download/help/download_options.xml

[Fred]

These free software will help as long as you do not have a hardware problem: CCleaner, Malwarebytes, and Superantispyware. Be aware that there are other causes of a slow computer.

There are only a few main causes for a computer to be slow like this- insufficient RAM, malware, insufficient free space on your hard drive, and too many programs in your startup group.

At least 10% and preferably 20% of your HD should be free space. If it is under 10% your computer will slow to a crawl. You may have to move videos, pictures and other large files to another drive to gain space. Uninstall programs you seldom use. Press Win key-E, right click on the C drive on the left side of this window, and select Properties for more detailed info.

Run CCleaner and Malwarebytes to get rid of malware. The CCleaner, Tools, Startup will allow you to see what programs are running every time you run your computer. Disable those that do not need to run all the time. Google the names of programs you are unfamiliar with to see their function and if they are safe to disable. Disabling does not uninstall. It simply stops these programs from running every time you boot the computer. You will still be able to run these programs any time you want. Be careful, many programs such as antivirus belong here. Printer drivers and Adobe Reader do not need to start every time you start the computer.

If IE or Firefox is very slow opening pages, go to Help and select "Start without add-ons" and see if this speeds things up. If it does, go to Tools, Manage Add-ons and disable add-ons until things speedup. If a page wants to use an add-on that you disabled, you will be asked to add it. Uninstall browser toolbars and search engines that you do not use. Simply not using them is not enough.