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. Microsoft Security Bulletin MS16-100.
To learn more about the vulnerability, seeMore Information
Important
-
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.
More Information
Known issues in this security update
-
When you try to install this security update, you may receive an error message that resembles the following:
The update is not applicable to your computer
OS Version
SSU KB #
Windows Server 2016 TP5
3173423
Windows Server 2012
3173426
Windows 10 Version 1511
3173428
Windows 10
3173427
Windows 8.1 or Windows Server 2012 R2
3173424
-
If you are running Windows 10 Version 1607 (Anniversary Edition), the Hyper-V firmware will already have the TP5 boot manager blacklisted.
For example, when you set up Hyper-V on a Windows 10 Version 1607-based system, if you then create a Windows Server 2016 TP5-based virtual machine (VM), the VM does not start. To resolve this issue, follow these steps:-
Open the Hyper-V Manager, right-click the VM, and then select Settings.
-
In the navigation pane, select Security.
-
In the details pane, select Microsoft UEFI Certificate Authority in the Template list.
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In the details pane, click to clear the Enable Secure Boot check box, and then click OK.
After you have installed TP5 on the VM and installed security update 3172729, re-enable secure boot. To do this, follow these steps:
-
Open the Hyper-V Manager, right-click the VM, and then select Settings.
-
In the navigation pane, select Security.
-
In the details pane, click to select the Enable Secure Boot check box.
-
In the details pane, select Microsoft Windows in the Template list, and then click OK.
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How to obtain and install the update
Method 1: Windows Update
This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, seeGet security updates automatically. Note For Windows RT 8.1, this update is available through Windows Update only.
Method 2: Microsoft Update Catalog
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
Method 3: Microsoft Download Center
For Windows 8.1, Windows Server 2012 R2 and Windows Server 2012, you can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.Microsoft Security Bulletin MS16-100 that corresponds to the version of Windows that you are running.
Click the download link inMore Information
How to obtain help and support for this security update
Help for installing updates: Support for Microsoft Update Security solutions for IT professionals: TechNet Security Troubleshooting and Support Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center Local support according to your country: International Support
File Information
File name |
SHA1 hash |
SHA256 hash |
---|---|---|
Windows10.0-KB3172729-v2-x64.msu (Windows Server 2016 TP5) |
19975CEF3C9B73FD9C09EB497364D9E8AF2384FE |
AC7443BFD844837B3C715793B7726F12734A76F8BB2EABD9F356981639C93398 |
Windows10.0-KB3172729-x64.msu (Windows 10 Version 1511) |
18DF742FAD6BEBC01E617C2D4F92E0D325E5138F |
F5B55D436056A905E755984D457BAC67295AD3E11531A6C33F3812CFB63CE010 |
Windows10.0-KB3172729-x86.msu (Windows 10 Version 1511) |
877795F675546BF16621464230D024863F9E512E |
6FEF8B54487B61676A6825BB2E68ED865DA81C8C108ABD93991D0FCCA722297A |
Windows10.0-KB3172729-x64.msu |
3721C0D77731CA564387070698812DD496810BD8 |
A4FE15534B7DD88DF4ADC73D68943EA340AF79EE79DD57360A19FC3D1F1CBD7C |
Windows10.0-KB3172729-x86.msu |
2CCD3AF51D198B548C849226F66C81174303AAA3 |
D05A11100EC2EA00F50140E3B0BFD08B48C364E5D381F23096CE8C661652096D |
Windows8-RT-KB3172729-x64.msu |
69CAB4C7785B1FAA3FC450F32BED4873D53BB96F |
349D5602181E776DBF7FDADBAE9543181C53690FC1D1BDD891266E3A57F246D1 |
Windows8.1-KB3172729-x86.msu |
ACB9DD33C1657AC9189158C1176E91540BA60CA3 |
C7EA1C520FCCADE22FF0610DA99BFC5A5F9FF2B4F7AB861D2786AF0683436BE5 |
Windows8.1-KB3172729-x64.msu |
E8003822A7EF4705CBB65623B72FD3CEC73FE222 |
D0FF89261A961F4C86D10BF5FCFAEAD9C3488DAB065C2C7338649B52A82112AB |
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.
Windows Server 2016 TP5
For all supported x64-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Boot.stl |
Not applicable |
4,846 |
15-Jul-2016 |
00:54 |
Not applicable |
Bootmgfw.efi |
10.0.14368.1000 |
1,183,584 |
15-Jul-2016 |
00:54 |
Not applicable |
Bootmgr.efi |
10.0.14300.1050 |
1,164,776 |
15-Jul-2016 |
04:24 |
Not applicable |
Bootmgfw.efi |
10.0.14368.1000 |
1,183,584 |
15-Jul-2016 |
00:54 |
Not applicable |
Dbupdate.bin |
Not applicable |
3 |
30-May-2016 |
00:49 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
02-Jul-2016 |
03:09 |
Not applicable |
Abortpxe.com |
Not applicable |
79 |
31-May-2016 |
04:48 |
Not applicable |
Bootmgr.exe |
10.0.14300.1050 |
671,720 |
15-Jul-2016 |
04:17 |
x86 |
Hdlscom1.com |
Not applicable |
25,662 |
31-May-2016 |
04:48 |
Not applicable |
Hdlscom1.n12 |
Not applicable |
25,646 |
31-May-2016 |
04:48 |
Not applicable |
Hdlscom2.com |
Not applicable |
25,662 |
31-May-2016 |
04:48 |
Not applicable |
Hdlscom2.n12 |
Not applicable |
25,646 |
31-May-2016 |
04:48 |
Not applicable |
Pxeboot.com |
Not applicable |
25,358 |
31-May-2016 |
04:48 |
Not applicable |
Pxeboot.n12 |
Not applicable |
25,358 |
31-May-2016 |
04:48 |
Not applicable |
Wdsnbp.com |
Not applicable |
30,832 |
31-May-2016 |
04:48 |
Not applicable |
Abortpxe.com |
Not applicable |
79 |
31-May-2016 |
04:48 |
Not applicable |
Bootmgfw.efi |
10.0.14368.1000 |
991,584 |
15-Jul-2016 |
00:58 |
Not applicable |
Bootmgr.exe |
10.0.14300.1050 |
671,720 |
15-Jul-2016 |
04:17 |
x86 |
Hdlscom1.com |
Not applicable |
25,662 |
31-May-2016 |
04:48 |
Not applicable |
Hdlscom1.n12 |
Not applicable |
25,646 |
31-May-2016 |
04:48 |
Not applicable |
Hdlscom2.com |
Not applicable |
25,662 |
31-May-2016 |
04:48 |
Not applicable |
Hdlscom2.n12 |
Not applicable |
25,646 |
31-May-2016 |
04:48 |
Not applicable |
Pxeboot.com |
Not applicable |
25,358 |
31-May-2016 |
04:48 |
Not applicable |
Pxeboot.n12 |
Not applicable |
25,358 |
31-May-2016 |
04:48 |
Not applicable |
Wdsnbp.com |
Not applicable |
30,832 |
31-May-2016 |
04:48 |
Not applicable |
Windows 10 Version 1511 file information
For all supported x64-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Dbupdate.bin |
Not applicable |
3 |
31-Mar-2015 |
01:31 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
13-Jul-2016 |
01:17 |
Not applicable |
For all supported x86-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Dbupdate.bin |
Not applicable |
3 |
31-Mar-2015 |
01:16 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
13-Jul-2016 |
01:23 |
Not applicable |
Windows 10 file information
For all supported x64-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Dbupdate.bin |
Not applicable |
3 |
18-Jun-2015 |
01:16 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
16-Jul-2016 |
01:53 |
Not applicable |
For all supported x86-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Dbupdate.bin |
Not applicable |
3 |
27-Mar-2015 |
21:47 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
16-Jul-2016 |
01:50 |
Not applicable |
Windows Server 2012 file information
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
6.2.920 0.17xxx
Windows 8, Windows RT, or Windows Server 2012
RTM
GDR
6.2.920 0.21xxx
Windows 8, Windows RT, or Windows Server 2012
RTM
LDR
-
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 MUM files (.mum) that are installed are not listed.
For all supported x64-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Dbupdate.bin |
Not applicable |
3 |
02-Jun-2012 |
14:53 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
09-Jul-2016 |
01:13 |
Not applicable |
Tpmtasks.dll |
6.2.9200.21926 |
94,208 |
12-Jul-2016 |
15:57 |
x64 |
Windows 8.1 and Windows Server 2012 R2 file information
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 0.16xxx
Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
RTM
GDR
6.3.960 0.17xxx
Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
RTM
GDR
6.3.960 0.18xxx
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 MUM files (.mum) that are installed are not listed.
For all supported x86-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Dbupdate.bin |
Not applicable |
3 |
18-Jun-2013 |
13:05 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
08-Jul-2016 |
13:35 |
Not applicable |
Tpmtasks.dll |
6.3.9600.18408 |
147,456 |
12-Jul-2016 |
14:04 |
x86 |
For all supported x64-based versions
File name |
File version |
File size |
Date |
Time |
Platform |
---|---|---|---|---|---|
Dbupdate.bin |
Not applicable |
3 |
18-Jun-2013 |
15:29 |
Not applicable |
Dbxupdate.bin |
Not applicable |
7,085 |
08-Jul-2016 |
13:36 |
Not applicable |
Tpmtasks.dll |
6.3.9600.18408 |
175,616 |
12-Jul-2016 |
14:08 |
x64 |