A lot of users have encountered Windows Update error 80092004 recently. Fortunately there are several fixes. Here are the simple solutions.
FIX #1: Run the Windows Update Troubleshooter
This is a very good tool from Microsoft that manages to resolve most issues. You can find it here: http://windows.microsoft.com/en-us/windows/troubleshoot-problems-installing-updates#1TC=windows-7
FIX #2: Set Internet Explorer As the Default Browser
If you’re using something like Google Chrome or Mozilla Firefox as your browser then try to set Internet Explorer temporarily as your default browser (just open IE and it should ask if you wish to make it the default). Restart your computer then run Windows Update again.
Then you can put your favourite browser back as the default.