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 and the system displays the error code "80071A90".
These symptoms could potentially occur on any Lenovo system running Windows 7, including models of ThinkPad, ThinkCentre, ThinkStation, IdeaPad or IdeaCentre.
If you encounter these symptoms and have this specific error code 80071A90 as the reason your Windows update did not complete, please install KB2647753, reboot and then repeat the Windows Updates.
The link for the "Update for Windows 7 for x64-based Systems (KB2647753)" can be found at the following URL: