To learn more about the vulnerability, see Microsoft Security Bulletin MS16-114.
Nonsecurity fixes that are included in this security update
- When you try to access a domain DFS namespace (such as \\contoso.com\SYSVOL) from a computer that is configured to require mutual authentication (by using the UNC Hardened Access feature), a 0xE3 Stop error may occur on the selected domain controller if the selected domain controller is running Windows Server 2008 and has security update 3161561 installed, and the SmbServerNameHardeningLevel registry entry is configured to a nonzero value on the server.
- You may receive a Stop 07xE error in SMB when you run many copy operations on the server-side.
- All future security and non-security updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.
- 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.
How to obtain and install the update
Method 1: Windows Update
Get security updates automatically.
Note For Windows RT 8.1, this update is available through Windows Update only.