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This security update includes improvements and fixes in the functionality of Windows 10 Version 1511. It also resolves the following vulnerabilities in Windows:

  • 3183038 MS16-104: Cumulative security update for Internet Explorer: September 13, 2016

  • 3183043 MS16-105: Cumulative security update for Microsoft Edge: September 13, 2016

  • 3185848 MS16-106: Security update for Microsoft Graphics Component: September 13, 2016

  • 3178467 MS16-110: Security update for Windows: September 13, 2016

  • 3186973 MS16-111: Security Update for Microsoft Kernel: September 13, 2016

  • 3178469 MS16-112: Security update for Windows Lock Screen: September 13, 2016

  • 3185876 MS16-113: Security Update for Windows Secure Kernel Mode: September 13, 2016

  • 3185879 MS16-114: Security Update for Windows SMBv1 Server: September 13, 2016

  • 3188733 MS16-115: Security update for Microsoft Windows PDF Library: September 13, 2016

  • 3188724 MS16-116: Security Update in OLE Automation for VBScript Scripting Engine: September 13, 2016

Windows 10 updates are cumulative. Therefore, this package contains all previously released fixes.

If you have installed previous updates, only the new fixes that are contained in this package will be downloaded and installed to your computer. If you are installing a Windows 10 update package for the first time, the package for the x86 version is 550 MB and the package for the x64 version is 1,030 MB.

Known issue in this security update

  • Symptoms

    Consider the following scenario:

    • You try to access a file server by using the SMBv1 protocol through an application such as File Explorer.

    • The application uses the CONNECT_INTERACTIVE flag for the WNetAddConnection API.

    • You're using a computer that's logged in through Microsoft Account credentials.

    • The network credentials you're using to access the file server share are not present in Credential Manager.

    • The firewall profile on the computer is set to Public.

    In this scenario, you receive the following error message:

    A specified logon session does not exist. It may already have been terminated.

    This problem may occur if you have security update 3187754 installed.


    To work around this problem, use any of these options:

    • Option 1: If possible, use SMBv2 instead of SMBv1.

    • Option 2: Pass credentials explicitly through the following net use cmd:

      net use \\<serverName>\<shareName> /user: <DomainName\UserName> <Password>

    • Option 3: Change the network profile to Private for private home networks instead of Public.

    • Option 4: Save credentials for trusted network shares in Credential Manager.

How to get this update

Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update will be downloaded and installed automatically.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.


There are no prerequisites for installing this update.

Restart information

You must restart the computer after you apply this update.

Update replacement information

This update replaces the previously released update 3176493.

File Information

For a list of the files that are provided in this cumulative update, download the file information for cumulative update 3185614.


Learn about the terminology that Microsoft uses to describe software updates.

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