The windows update installation fails to complete. Upon failure, the windows updates are reverted to the previous configuration. Repeating the windows updates will result in the same failure to update the system. The system will display the error code "80071A90".
The above symptom is associated with, but not limited to, the following systems:
The user should install the KB2647753 only and then repeat the windows updates.
Click here for the link to Update for Windows 7 for x64-based Systems (KB2647753)