Severity Rating: Critical
Revision Note: V1.1 (February 12, 2016): Revised bulletin to add links to update 3135782 on the Download Center for Windows 8.1 for 32-bit Systems, Windows 8.1 for x64-based Systems, Windows Server 2012, and Windows Server 2012 R2. This is an informational change only. Customers who have already successfully installed the update do not need to take any further action.