Hi Leonard,
Thank you for posting your query in Microsoft Community.
I apologize for the inconvenience caused to you.
This issue might occur due to the third party software conflict or incorrect Windows Update Components.
Check for the Windows Update history and to provide us the error details of the other updates that have failed.
http://windows.microsoft.com/en-us/windows/which-windows-updates-installed#1TC=windows-7
Refer to the below link to trouble shoot this issue.
http://windows.microsoft.com/en-us/windows/troubleshoot-problems-installing-updates#1TC=windows-7
If it doesn’t work reset the windows components manually.
https://support.microsoft.com/en-us/kb/971058
Disclaimer: This section, method, or task contains steps that tells you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: 322756 (http://support.microsoft.com/kb/322756/ )
If the issue still persist perform a clean boot and check the status of the issue.
https://support.microsoft.com/kb/929135
Disclaimer: A clean boot is performed to start Windows by using a minimal set of drivers and startup programs. This helps eliminate software conflicts that occur when you install a program or an update or when you run a program in Windows. You may also troubleshoot or determine what conflict is causing the problem by performing a clean boot. You must log on to the computer as an administrator to be able to perform a clean boot. Your computer may temporarily lose some functionality when you perform a clean boot. When you start the computer normally, the functionality returns. However, you may receive the original error message, or experience the original behavior if the problem still exists. If the computer is connected to a network, network policy settings may prevent you from following these steps.
https://support.microsoft.com/kb/929135
Once you perform clean boot do refer to the section “ How to reset the computer to start normally after clean boot troubleshooting” to boot the computer in normal mode.
Reply with the status of the issue, I will be happy to help you.