Windows Update KB2863058
changes the time zone data to accommodate daylight saving time (DST) changes in several countries. This update supersedes and replaces the update that is described in Microsoft Knowledge Base (KB) article 2779562,
which was released in December 2012. All additional time zone changes released as hotfixes after the update 2779562 are incorporated in this update.
When you apply this update, you may receive a message that resembles the following:
“Update cannot be installed as a newer or same time zone update has already been installed on the system”
This message indicates that you have already applied the correct update or that Windows Updates or Microsoft Update has automatically installed this update. No additional action is required to update the Windows operating system.
Please let us know the exact error message/code that you receive while the update fails?
If you receive an error message that is different from the one mentioned above, I would recommend you to follow the methods mentioned below:
Fix the problem with Microsoft Windows Update that is not working
Perform all the recommended steps and if after following the steps issue still persists please revert back to us and we will be glad to provide you with additional options available that you can use to get this issue resolved.
I had this problem also. I had to go into add/remove programs and find the update that was installed and uninstall it. Then for some reason the system would let it install. Maybe it was not installed correctly the first time.