This article describes an update that improves the Secure Channel (Schannel) for Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2. Before you install this update, check out the Prerequisites section.
Symptoms
Before you install the update, Local Security Authority (LSA) crash issues may occur.
How to obtain this update
Important Do not install a language pack after you install this update. If you do, the language-specific changes in the update will not be applied, and you will have to reinstall the update. For more information, see Add language packs to Windows.
Method 1: Windows Update
This update is available from Windows Update.
Method 2: Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
|
Operating system |
Update |
|---|---|
|
All supported x86-based versions of Windows 8.1 |
|
|
All supported x64-based versions of Windows 8.1 |
|
|
All supported x64-based versions of Windows Server 2012 R2 |
Note The update for Windows RT 8.1 can be obtained only from Windows Update. For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Update detail information
Prerequisites
To install this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2.
Registry information
To apply this update, you do not have to make any changes to the registry.
Restart requirement
You may have to restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 8.1 and Windows Server 2012 R2 file information and notes
-
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Version
Product
Milestone
Service branch
6.3.960 0.17 xxx
Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
RTM
GDR
-
GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
-
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 8.1
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Schannel.dll |
6.3.9600.17728 |
358,912 |
13-Mar-2015 |
02:38 |
x86 |
For all supported x64-based versions of Windows 8.1 or Windows Server 2012 R2
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Schannel.dll |
6.3.9600.17728 |
430,080 |
13-Mar-2015 |
02:59 |
x64 |
|
Schannel.dll |
6.3.9600.17728 |
358,912 |
13-Mar-2015 |
02:38 |
x86 |
For all supported Windows RT 8.1
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Schannel.dll |
6.3.9600.17728 |
307,712 |
13-Mar-2015 |
02:18 |
Not applicable |
Additional file information
Additional file information for Windows 8.1 and for Windows Server 2012 R2
Additional files for all supported x86-based versions of Windows 8.1
|
File property |
Value |
|---|---|
|
File name |
X86_023b38e1bd01d2ca0726d2a82e0b1d17_31bf3856ad364e35_6.3.9600.17728_none_e903fd74d9cc881b.manifest |
|
File version |
Not applicable |
|
File size |
705 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
14:48 |
|
Platform |
Not applicable |
|
File name |
X86_microsoft-windows-security-schannel_31bf3856ad364e35_6.3.9600.17728_none_b6fae11570a837f2.manifest |
|
File version |
Not applicable |
|
File size |
13,286 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
04:50 |
|
Platform |
Not applicable |
Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
|
File property |
Value |
|---|---|
|
File name |
Amd64_12e94e7dd5cf5222acb061c9c42c7c14_31bf3856ad364e35_6.3.9600.17728_none_bb043d435aa04ed2.manifest |
|
File version |
Not applicable |
|
File size |
709 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
14:48 |
|
Platform |
Not applicable |
|
File name |
Amd64_f4e0bf67139a362695c433eb74409eb7_31bf3856ad364e35_6.3.9600.17728_none_13fadfb51ce12a83.manifest |
|
File version |
Not applicable |
|
File size |
709 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
14:48 |
|
Platform |
Not applicable |
|
File name |
Amd64_microsoft-windows-security-schannel_31bf3856ad364e35_6.3.9600.17728_none_13197c992905a928.manifest |
|
File version |
Not applicable |
|
File size |
13,290 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
05:42 |
|
Platform |
Not applicable |
|
File name |
Wow64_microsoft-windows-security-schannel_31bf3856ad364e35_6.3.9600.17728_none_1d6e26eb5d666b23.manifest |
|
File version |
Not applicable |
|
File size |
7,312 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
04:50 |
|
Platform |
Not applicable |
Additional files for all supported Windows RT 8.1
|
File property |
Value |
|---|---|
|
File name |
Arm_0ff9ee4b506c3ab1b9d483bbc7309e3e_31bf3856ad364e35_6.3.9600.17728_none_060c5ec1de600d45.manifest |
|
File version |
Not applicable |
|
File size |
705 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
14:48 |
|
Platform |
Not applicable |
|
File name |
Arm_microsoft-windows-security-schannel_31bf3856ad364e35_6.3.9600.17728_none_b6fd536d70a556b8.manifest |
|
File version |
Not applicable |
|
File size |
13,286 |
|
Date (UTC) |
13-Mar-2015 |
|
Time (UTC) |
03:49 |
|
Platform |
Not applicable |
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
See the terminology that Microsoft uses to describe software updates.
