The May 2016 update rollup package for Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 resolves issues and includes performance and reliability improvements. We recommend that you apply this update rollup as part of your regular maintenance routines. Check out the fixed issues in this update. Also, see the prerequisites and restart requirement for installing this update.

Issues that this update fixes

This update package fixes the issues that are documented in the following Microsoft Knowledge Base articles:

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 is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through 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 7

Download Download the package now.

All supported x64-based versions of Windows 7

Download Download the package now.

All supported x64-based versions of Windows Server 2008 R2

Download Download the package now.

All supported IA-64-based versions of Windows Server 2008 R2

Download Download the package now.

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.

Method 3: Microsoft Update Catalog

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

Note You must be running Microsoft Internet Explorer 6.0 or later.

Update detail information

Prerequisites

To apply this update, you must install Service Pack 1 for Windows 7 or Windows Server 2008 R2.

Restart requirement

You must restart the computer after you apply this update.

Update replacement information

This update doesn't replace any previously released update.

File Information

The following table lists the thumbprints of the certificates that are used to sign the updates (.msu). Verify the certificate thumbprint in this Microsoft Knowledge Base article against the certificate thumbprint that is indicated on the update that you download.

File name

SHA1 hash

SHA256 hash

Windows6.1-KB3156417-ia64.msu

2831BAF1930A3F4CC570624C10A5965CEB988D4A

EC532C32659B139F75ABFE7A0259405507DED0AA0F28FA6954B79D4012AE7DDE

Windows6.1-KB3156417-x86.msu

1CA2AD15C00EB72EE4552C4DC3D2B21AD12F54B8

E6AC72D6C3FB2DBC303E7B77FBBD920A308710BE32D3C93D1DFE055F036FBC23

Windows6.1-KB3156417-x64.msu

152FC1BA98B111D2124AB766A0B15CE3EF8FC42B

ABBB3F39B0FB2FB2909D8D3D6866EA68AE82D9AE0E56E6943DC6BCCCA71A7FE4


The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 7 and Windows Server 2008 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

    6.1.760 1.23xxx

    Windows 7 or Windows Server 2008 R2

    SP1

    LDR

  • The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported ia64-based versions

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Bcryptprimitives.dll

6.1.7601.23217

503,656

23-Mar-2016

22:40

IA-64

None

Not applicable

Cryptbase.dll

6.1.7601.23419

62,976

12-Apr-2016

01:00

IA-64

None

Not applicable

Cng.sys

6.1.7601.23217

790,176

23-Mar-2016

22:40

IA-64

None

Not applicable

Ksecdd.sys

6.1.7601.23419

179,432

12-Apr-2016

01:05

IA-64

None

Not applicable

Ksecpkg.sys

6.1.7601.23419

318,696

12-Apr-2016

01:05

IA-64

None

Not applicable

Lsasrv.dll

6.1.7601.23419

2,700,800

12-Apr-2016

01:00

IA-64

None

Not applicable

Lsasrv.mof

Not applicable

13,780

23-Mar-2016

22:40

Not applicable

None

Not applicable

Lsass.exe

6.1.7601.23419

55,808

12-Apr-2016

00:30

IA-64

None

Not applicable

Secur32.dll

6.1.7601.23419

48,640

12-Apr-2016

01:00

IA-64

None

Not applicable

Sspicli.dll

6.1.7601.23419

274,944

12-Apr-2016

01:00

IA-64

None

Not applicable

Sspisrv.dll

6.1.7601.23419

45,568

12-Apr-2016

01:00

IA-64

None

Not applicable

Adtschema.dll

6.1.7601.23419

690,688

12-Apr-2016

01:00

IA-64

None

Not applicable

Auditpol.exe

6.1.7601.23419

145,408

12-Apr-2016

00:39

IA-64

None

Not applicable

Msaudite.dll

6.1.7601.23419

146,432

12-Apr-2016

01:00

IA-64

None

Not applicable

Msobjs.dll

6.1.7601.23419

60,416

12-Apr-2016

01:00

IA-64

None

Not applicable

Ncrypt.dll

6.1.7601.23419

561,152

12-Apr-2016

01:00

IA-64

None

Not applicable

Rpchttp.dll

6.1.7601.23419

401,408

12-Apr-2016

01:00

IA-64

None

Not applicable

Rpcrt4.dll

6.1.7601.23419

2,574,336

12-Apr-2016

01:00

IA-64

None

Not applicable

Credssp.dll

6.1.7601.23419

49,664

12-Apr-2016

01:00

IA-64

SP_

IA64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.dll

6.1.7601.23419

188,416

12-Apr-2016

01:00

IA-64

SP_

IA64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.mof

Not applicable

964

23-Mar-2016

22:42

Not applicable

SP_

IA64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Wdigest.dll

6.1.7601.23419

474,624

12-Apr-2016

01:00

IA-64

None

Not applicable

Kerberos.dll

6.1.7601.23419

1,534,976

12-Apr-2016

01:00

IA-64

None

Not applicable

Msv1_0.dll

6.1.7601.23419

650,240

12-Apr-2016

01:00

IA-64

None

Not applicable

Schannel.dll

6.1.7601.23419

722,944

12-Apr-2016

01:00

IA-64

None

Not applicable

Mrxsmb10.sys

6.1.7601.23419

685,056

12-Apr-2016

00:31

IA-64

None

Not applicable

Mrxsmb20.sys

6.1.7601.23419

315,392

12-Apr-2016

00:31

IA-64

None

Not applicable

Mrxsmb.sys

6.1.7601.23419

371,200

12-Apr-2016

00:31

IA-64

None

Not applicable

Lsasrv.mof

Not applicable

13,780

23-Mar-2016

22:39

Not applicable

None

Not applicable

Secur32.dll

6.1.7601.23419

22,016

12-Apr-2016

01:02

x86

None

Not applicable

Sspicli.dll

6.1.7601.23419

96,768

12-Apr-2016

01:02

x86

None

Not applicable

Rpcrt4.dll

6.1.7601.23419

666,112

12-Apr-2016

01:02

x86

None

Not applicable

Wdigest.dll

6.1.7601.23419

171,520

12-Apr-2016

01:02

x86

None

Not applicable

Kerberos.dll

6.1.7601.23419

553,472

12-Apr-2016

01:02

x86

None

Not applicable

Msv1_0.dll

6.1.7601.23419

260,608

12-Apr-2016

01:02

x86

None

Not applicable

Schannel.dll

6.1.7601.23419

251,392

12-Apr-2016

01:02

x86

None

Not applicable

Bcryptprimitives.dll

6.1.7601.23217

251,000

23-Mar-2016

22:39

x86

None

Not applicable

Cryptbase.dll

6.1.7601.23419

36,352

12-Apr-2016

00:36

x86

None

Not applicable

Adtschema.dll

6.1.7601.23419

690,688

12-Apr-2016

01:01

x86

None

Not applicable

Auditpol.exe

6.1.7601.23419

50,176

12-Apr-2016

00:41

x86

None

Not applicable

Msaudite.dll

6.1.7601.23419

146,432

12-Apr-2016

01:02

x86

None

Not applicable

Msobjs.dll

6.1.7601.23419

60,416

12-Apr-2016

01:02

x86

None

Not applicable

Ncrypt.dll

6.1.7601.23419

223,232

12-Apr-2016

01:02

x86

None

Not applicable

Rpchttp.dll

6.1.7601.23419

141,312

12-Apr-2016

01:02

x86

None

Not applicable

Credssp.dll

6.1.7601.23419

17,408

12-Apr-2016

01:01

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.dll

6.1.7601.23419

65,536

12-Apr-2016

01:02

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.mof

Not applicable

964

23-Mar-2016

22:41

Not applicable

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Bcryptprimitives.dll

6.1.7601.23217

251,000

23-Mar-2016

22:39

x86

None

Not applicable

Cryptbase.dll

6.1.7601.23419

36,352

12-Apr-2016

00:36

x86

None

Not applicable

Cng.sys

6.1.7601.23217

371,920

23-Mar-2016

22:39

x86

None

Not applicable

Ksecdd.sys

6.1.7601.23419

67,304

12-Apr-2016

01:07

x86

None

Not applicable

Ksecpkg.sys

6.1.7601.23419

137,960

12-Apr-2016

01:07

x86

None

Not applicable

Lsasrv.dll

6.1.7601.23419

1,062,400

12-Apr-2016

01:02

x86

None

Not applicable

Lsasrv.mof

Not applicable

13,780

23-Mar-2016

22:39

Not applicable

None

Not applicable

Lsass.exe

6.1.7601.23419

22,016

12-Apr-2016

00:36

x86

None

Not applicable

Secur32.dll

6.1.7601.23419

22,016

12-Apr-2016

01:02

x86

None

Not applicable

Sspicli.dll

6.1.7601.23419

99,840

12-Apr-2016

01:02

x86

None

Not applicable

Sspisrv.dll

6.1.7601.23419

15,872

12-Apr-2016

00:36

x86

None

Not applicable

Adtschema.dll

6.1.7601.23419

690,688

12-Apr-2016

01:01

x86

None

Not applicable

Auditpol.exe

6.1.7601.23419

50,176

12-Apr-2016

00:41

x86

None

Not applicable

Msaudite.dll

6.1.7601.23419

146,432

12-Apr-2016

01:02

x86

None

Not applicable

Msobjs.dll

6.1.7601.23419

60,416

12-Apr-2016

01:02

x86

None

Not applicable

Ncrypt.dll

6.1.7601.23419

223,232

12-Apr-2016

01:02

x86

None

Not applicable

Rpchttp.dll

6.1.7601.23419

141,312

12-Apr-2016

01:02

x86

None

Not applicable

Rpcrt4.dll

6.1.7601.23419

655,360

12-Apr-2016

01:02

x86

None

Not applicable

Credssp.dll

6.1.7601.23419

17,408

12-Apr-2016

01:01

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.dll

6.1.7601.23419

65,536

12-Apr-2016

01:02

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.mof

Not applicable

964

23-Mar-2016

22:41

Not applicable

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Wdigest.dll

6.1.7601.23419

171,520

12-Apr-2016

01:02

x86

None

Not applicable

Kerberos.dll

6.1.7601.23419

553,472

12-Apr-2016

01:02

x86

None

Not applicable

Msv1_0.dll

6.1.7601.23419

260,608

12-Apr-2016

01:02

x86

None

Not applicable

Schannel.dll

6.1.7601.23419

251,392

12-Apr-2016

01:02

x86

None

Not applicable

Mrxsmb10.sys

6.1.7601.23419

226,304

12-Apr-2016

00:37

x86

None

Not applicable

Mrxsmb20.sys

6.1.7601.23419

98,304

12-Apr-2016

00:37

x86

None

Not applicable

Mrxsmb.sys

6.1.7601.23419

124,416

12-Apr-2016

00:37

x86

None

Not applicable

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Bcryptprimitives.dll

6.1.7601.23217

298,192

23-Mar-2016

22:40

x64

None

Not applicable

Certcli.dll

6.1.7601.23419

463,872

12-Apr-2016

01:20

x64

None

Not applicable

Cryptbase.dll

6.1.7601.23419

43,520

12-Apr-2016

01:20

x64

None

Not applicable

Cng.sys

6.1.7601.23217

459,344

23-Mar-2016

22:40

x64

None

Not applicable

Ksecdd.sys

6.1.7601.23419

95,464

12-Apr-2016

01:23

x64

None

Not applicable

Ksecpkg.sys

6.1.7601.23419

154,344

12-Apr-2016

01:23

x64

None

Not applicable

Lsasrv.dll

6.1.7601.23419

1,464,320

12-Apr-2016

01:20

x64

None

Not applicable

Lsasrv.mof

Not applicable

13,780

23-Mar-2016

22:40

Not applicable

None

Not applicable

Lsass.exe

6.1.7601.23419

30,720

12-Apr-2016

00:42

x64

None

Not applicable

Secur32.dll

6.1.7601.23419

28,160

12-Apr-2016

01:20

x64

None

Not applicable

Sspicli.dll

6.1.7601.23419

135,680

12-Apr-2016

01:20

x64

None

Not applicable

Sspisrv.dll

6.1.7601.23419

28,672

12-Apr-2016

01:20

x64

None

Not applicable

Adtschema.dll

6.1.7601.23419

690,688

12-Apr-2016

01:20

x64

None

Not applicable

Auditpol.exe

6.1.7601.23419

64,000

12-Apr-2016

00:50

x64

None

Not applicable

Msaudite.dll

6.1.7601.23419

146,432

12-Apr-2016

01:20

x64

None

Not applicable

Msobjs.dll

6.1.7601.23419

60,416

12-Apr-2016

01:20

x64

None

Not applicable

Ncrypt.dll

6.1.7601.23419

312,320

12-Apr-2016

01:20

x64

None

Not applicable

Ocspisapi.dll

6.1.7601.23419

355,840

12-Apr-2016

01:20

x64

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspisapictrs.h

Not applicable

1,421

23-Mar-2016

22:41

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspisapictrs.ini

Not applicable

2,636

23-Mar-2016

22:41

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,960

12-Apr-2016

02:00

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,134

12-Apr-2016

01:56

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,918

12-Apr-2016

01:19

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,210

12-Apr-2016

02:01

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,098

12-Apr-2016

01:58

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,028

12-Apr-2016

02:00

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,140

12-Apr-2016

01:56

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,642

12-Apr-2016

02:02

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,576

12-Apr-2016

02:00

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,026

12-Apr-2016

02:01

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,028

12-Apr-2016

01:58

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,188

12-Apr-2016

01:58

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,130

12-Apr-2016

01:56

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,064

12-Apr-2016

02:01

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

3,092

12-Apr-2016

01:56

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,828

12-Apr-2016

01:58

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,158

12-Apr-2016

02:00

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,460

12-Apr-2016

01:57

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvc.exe

6.1.7601.23419

275,968

12-Apr-2016

00:50

x64

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.h

Not applicable

1,569

23-Mar-2016

22:41

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Ocspsvcctrs.ini

Not applicable

2,918

23-Mar-2016

22:41

Not applicable

SPS

AMD64_MICROSOFT-WINDOWS-OCSP

Rpchttp.dll

6.1.7601.23419

190,464

12-Apr-2016

01:20

x64

None

Not applicable

Rpcrt4.dll

6.1.7601.23419

1,212,928

12-Apr-2016

01:20

x64

None

Not applicable

Credssp.dll

6.1.7601.23419

22,016

12-Apr-2016

01:20

x64

SP_

AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.dll

6.1.7601.23419

86,528

12-Apr-2016

01:20

x64

SP_

AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.mof

Not applicable

964

23-Mar-2016

22:41

Not applicable

SP_

AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Wdigest.dll

6.1.7601.23419

210,432

12-Apr-2016

01:20

x64

None

Not applicable

Kerberos.dll

6.1.7601.23419

730,624

12-Apr-2016

01:20

x64

None

Not applicable

Msv1_0.dll

6.1.7601.23419

316,416

12-Apr-2016

01:20

x64

None

Not applicable

Schannel.dll

6.1.7601.23419

344,064

12-Apr-2016

01:20

x64

None

Not applicable

Mrxsmb10.sys

6.1.7601.23419

291,328

12-Apr-2016

00:43

x64

None

Not applicable

Mrxsmb20.sys

6.1.7601.23419

129,536

12-Apr-2016

00:43

x64

None

Not applicable

Mrxsmb.sys

6.1.7601.23419

159,744

12-Apr-2016

00:43

x64

None

Not applicable

Lsasrv.mof

Not applicable

13,780

23-Mar-2016

22:39

Not applicable

None

Not applicable

Secur32.dll

6.1.7601.23419

22,016

12-Apr-2016

01:02

x86

None

Not applicable

Sspicli.dll

6.1.7601.23419

96,768

12-Apr-2016

01:02

x86

None

Not applicable

Rpcrt4.dll

6.1.7601.23419

666,112

12-Apr-2016

01:02

x86

None

Not applicable

Wdigest.dll

6.1.7601.23419

171,520

12-Apr-2016

01:02

x86

None

Not applicable

Kerberos.dll

6.1.7601.23419

553,472

12-Apr-2016

01:02

x86

None

Not applicable

Msv1_0.dll

6.1.7601.23419

260,608

12-Apr-2016

01:02

x86

None

Not applicable

Schannel.dll

6.1.7601.23419

251,392

12-Apr-2016

01:02

x86

None

Not applicable

Bcryptprimitives.dll

6.1.7601.23217

251,000

23-Mar-2016

22:39

x86

None

Not applicable

Certcli.dll

6.1.7601.23419

342,528

12-Apr-2016

01:01

x86

None

Not applicable

Cryptbase.dll

6.1.7601.23419

36,352

12-Apr-2016

00:36

x86

None

Not applicable

Adtschema.dll

6.1.7601.23419

690,688

12-Apr-2016

01:01

x86

None

Not applicable

Auditpol.exe

6.1.7601.23419

50,176

12-Apr-2016

00:41

x86

None

Not applicable

Msaudite.dll

6.1.7601.23419

146,432

12-Apr-2016

01:02

x86

None

Not applicable

Msobjs.dll

6.1.7601.23419

60,416

12-Apr-2016

01:02

x86

None

Not applicable

Ncrypt.dll

6.1.7601.23419

223,232

12-Apr-2016

01:02

x86

None

Not applicable

Rpchttp.dll

6.1.7601.23419

141,312

12-Apr-2016

01:02

x86

None

Not applicable

Credssp.dll

6.1.7601.23419

17,408

12-Apr-2016

01:01

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.dll

6.1.7601.23419

65,536

12-Apr-2016

01:02

x86

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP

Tspkg.mof

Not applicable

964

23-Mar-2016

22:41

Not applicable

SP_

X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP


References

For more information about Windows Update, go to the following Microsoft websites:

Troubleshoot problems with installing updates

Updates: frequently asked questions

KB2509997 You can't install updates in Windows Vista, Windows 7, Windows Server 2008, or Windows Server 2008 R2
Learn about the terminology that Microsoft uses to describe software updates.

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