|Patch Description||Security Update for Windows 8.1 for x64-based Systems (KB3172729)|
|Bulletin Title||Security Update for Secure Boot (3179577)|
|Bulletin Summary||This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow security feature bypass if an attacker installs an affected boot manager and bypasses Windows security features.|
|Superceding Bulletin Id||MS21-JAN13|
|Patch Release Date||Aug 9, 2016|
Affected Product Information
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