Java SE (Java Platform, Standard Edition)

I've somehow really hosed my system up. I am running Windows 7 Professional 64-bit
Programs and Features shows that I have 'Java(TM) 6 Update 18', Publisher = Sun Microsystems, Inc., Version = 6.0.180

{color:#0000ff}When I try to uninstall the program from Programs and Features I get the following dialog boxes:
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Windows Installer dialog: "The installed product does not matche the installation sources(s). Until a matching source is provided or the installed product and source are synchronized, this action can not be performed."
Click on Browse and navigate to: C:\Users\username\AppData\LocalLow\Sun\Java\jre1.6.0_18.msi
Windows Installer dialog: "The file 'C:\Users\username\AppData\LocalLow\Sun\Java\jre1.6.0_18.msi' is not a valid installation package for the product Java(TM) 6 Update 18. Try to find the installation package 'jre1.6.0_18.msi' in a folder from which you can install Java(TM) 6 Update 18."
Windows Installer dialog: "The installation source for this product is not available. Verify that the source exists and that you can access it.

{color:#0000ff}If I try it reinstall it using the Install File: jre-6u18-windows-i586-s.exe
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Java Setup dialog: "This software has already been installed on your computer. Would you like to reinstall it?" Click Yes.
Windows Installer dialog: "The installed product does not matche the installation sources(s). Until a matching source is provided or the installed product and source are synchronized, this action can not be performed."
Click on Browse and navigate to: C:\Users\username\AppData\LocalLow\Sun\Java\jre1.6.0_18.msi
Windows Installer dialog: "The file 'C:\Users\username\AppData\LocalLow\Sun\Java\jre1.6.0_18.msi' is not a valid installation package for the product Java(TM) 6 Update 18. Try to find the installation package 'jre1.6.0_18.msi' in a folder from which you can install Java(TM) 6 Update 18."
When I click cancel I get Windows Installer dialog: "The installation source for this product is not available. Verify that the source exists and that you can access it."
Click OK and get Windows Installer dialog: "Another version of the product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use the Add/Remove Programs on the Control Panel.
Click OK and it ends.

{color:#0000ff}I have also come accross this at some point.
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Windows Installer: This action is only valid for products that are currently installed.

Thank you for any help.

Edited by: damind on Mar 26, 2010 9:59 AM