KB2859537 / MS13-063 seems to be causing issues for some customers deploying this update.
Please review the advisory in the below links before deploying;
Known issues with this security update
- Some users may experience issues with certain programs after they install security update 2859537. In some cases the programs may not successfully start. We are also aware of limited reports that certain users may encounter difficulties restarting their computers after applying this security update. Microsoft is researching this problem and will post more information in this article when the information becomes available.