Cant get windows installer and java to open even after downloaded

Method 1


Unregister Windows Installer, and then reregister Windows Installer. To do this, follow these steps:

1. On the "Start" menu, click "Run:.

2. In the "Open" box, type "msiexec /unreg", and then press ENTER.

3. On the "Start" menu, click "Run".

4. In the "Open" box, type "msiexec /regserver", and then press ENTER.


Method 2


Upgrade to Windows Installer version 2 or newer version. To do this, follow these steps:

1. Start Microsoft Internet Explorer, and then browse to the following Microsoft Web site:

http://msdn.microsoft.com/downloads

2. In the left pane tree menu, click "Setup and System Administration", and then click "Setup".

3. Click "Windows Installer", and then click the appropriate link for your operating system.

4. Click "Download" to download and install Windows Installer version 2 or newer version.


Method 3


Use Windows Installer CleanUp Utility to uninstall the failed product.

Description of the Windows Installer CleanUp Utility

http://support.microsoft.com/default.aspx?scid=kb;en-us;290301


Method 4


The Windows Installer service may disabled on the machine.

1. Go to "Start" -> "Run" , type "services.msc" and press on "Enter" button.

2. Double-click on the service named "Windows Installer".

3. Check the value in the "Startup type:" field. If it's currently set to "Disabled", then this is the

problem. Change it by selecting "Manual" from the drop-down box.

courtesy:- support.microsoft.com