July 11, 2017—KB4025333 (Security-only update)

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2017-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4025333)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...