Applies ToWindows 7 Service Pack 1 Windows Server 2008 R2 Service Pack 1

Summary

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.

We strongly recommend you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). Installing servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft security fixes. For general information on SSUs, please see the following articles:

How to get this update

Method 1: Windows Update 

This update is available through Windows Update. It 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.

Method 3: Windows Server Update Services

This update is also available through Windows Server Update Services (WSUS).

Prerequisites 

You must have the following updates installed before you apply this update. If you use Windows Update, these updates will be offered automatically as needed.

Important You must restart your device after installing all the required updates and before installing any Monthly Rollup, Security-only update, or Preview of Monthly Rollup.

Restart information 

You don't have to restart your computer after you apply this update.  

Update replacement information 

This update replaces the previously released update KB 4523206.

File Information

File attributes

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

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

File verification

File hash information

File name

SHA1 hash

SHA256 hash

Windows6.1-KB4531786-x86.msu

F5E77B10701603F4C2FD9EE9E817E5CD3057915D

1515404258CE5DD05A8575E88690D399DD766DDD0296A67ABBA8AC7F9CBA798E

Windows6.1-KB4531786-ia64.msu

38F5AD5043CBFD19C2BB99B4EC9821C20543CC38

808777E7317D790F7F8D8037E0BE3C7A89FBAE9A1DCA2873E5793F3018434FB4

Windows6.1-KB4531786-x64.msu

FC7C2BB89D312C8184E367D2169D0C8FDCB97BF4

23503E0A45C649F9A6A0608959D0BDCF441C8D46CB437254349473FBED00100A

For all supported x86-based versions

File name

File version

File size

Date

Time

Apds.dll

6.1.7601.24537

1,798,144

15-Nov-2019

02:29

Apircl.dll

6.1.7601.24537

223,744

15-Nov-2019

02:29

Apss.dll

6.1.7601.24537

201,216

15-Nov-2019

02:29

Cbscore.dll

6.1.7601.24537

845,824

15-Nov-2019

02:29

Cbsmsg.dll

6.1.7601.24537

28,672

15-Nov-2019

01:58

Cmiadapter.dll

6.1.7601.24537

120,320

15-Nov-2019

02:29

Cmitrust.dll

6.1.7601.24537

296,960

15-Nov-2019

02:29

Cmiv2.dll

6.1.7601.24537

2,040,832

15-Nov-2019

02:29

Cntrtextinstaller.dll

6.1.7601.24537

143,872

15-Nov-2019

02:29

Dpx.dll

6.1.7601.24537

257,024

15-Nov-2019

02:29

Drupdate.dll

6.1.7601.24537

174,080

15-Nov-2019

02:29

Drvstore.dll

6.1.7601.24537

323,584

15-Nov-2019

02:29

Esscli.dll

6.1.7601.24537

266,240

15-Nov-2019

02:29

Extendedsecurityupdatesai.dll

6.1.7601.24537

85,504

15-Nov-2019

01:58

Fastprox.dll

6.1.7601.24537

606,720

15-Nov-2019

02:29

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24537

105,472

15-Nov-2019

02:29

Locdrv.dll

6.1.7601.24537

229,888

15-Nov-2019

02:29

Mofd.dll

6.1.7601.24537

192,000

15-Nov-2019

02:29

Mofinstall.dll

6.1.7601.24537

58,880

15-Nov-2019

02:29

Msdelta.dll

6.1.7601.24537

305,664

15-Nov-2019

02:29

Mspatcha.dll

6.1.7601.24537

35,328

15-Nov-2019

02:29

Oemhelpins.dll

6.1.7601.24537

151,040

15-Nov-2019

02:29

Pkgmgr.exe

6.1.7601.24537

209,920

15-Nov-2019

01:58

Poqexec.exe

6.1.7601.24537

123,904

15-Nov-2019

01:58

Repdrvfs.dll

6.1.7601.24537

302,080

15-Nov-2019

02:29

Smiengine.dll

6.1.7601.24537

697,344

15-Nov-2019

02:29

Smipi.dll

6.1.7601.24537

98,816

15-Nov-2019

02:29

Svcini.exe

6.1.7601.24537

16,384

15-Nov-2019

01:58

Wbemcomn.dll

6.1.7601.24537

363,520

15-Nov-2019

02:29

Wbemcore.dll

6.1.7601.24537

780,288

15-Nov-2019

02:29

Wbemprox.dll

6.1.7601.24537

29,184

15-Nov-2019

02:29

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24537

1,913,344

15-Nov-2019

02:29

Wdscore.dll

6.1.7601.24537

190,464

15-Nov-2019

02:29

Wmicmiplugin.dll

6.1.7601.24537

351,744

15-Nov-2019

02:29

Wmiutils.dll

6.1.7601.24537

85,504

15-Nov-2019

02:29

Wrpint.dll

6.1.7601.24537

54,272

15-Nov-2019

01:56

Xmllite.dll

1.3.1001.0

180,736

15-Nov-2019

02:29

For all supported ia64-based versions

File name

File version

File size

Date

Time

Apds.dll

6.1.7601.24537

3,342,336

15-Nov-2019

02:08

Apircl.dll

6.1.7601.24537

752,128

15-Nov-2019

02:08

Apss.dll

6.1.7601.24537

560,128

15-Nov-2019

02:08

Cbscore.dll

6.1.7601.24537

1,837,056

15-Nov-2019

02:08

Cbsmsg.dll

6.1.7601.24537

40,448

15-Nov-2019

02:08

Cmiadapter.dll

6.1.7601.24537

284,672

15-Nov-2019

02:08

Cmitrust.dll

6.1.7601.24537

987,136

15-Nov-2019

02:08

Cmiv2.dll

6.1.7601.24537

6,536,192

15-Nov-2019

02:08

Cntrtextinstaller.dll

6.1.7601.24537

357,376

15-Nov-2019

02:08

Dpx.dll

6.1.7601.24537

770,560

15-Nov-2019

02:08

Drupdate.dll

6.1.7601.24537

390,656

15-Nov-2019

02:08

Drvstore.dll

6.1.7601.24537

742,912

15-Nov-2019

02:08

Esscli.dll

6.1.7601.24537

1,011,200

15-Nov-2019

02:08

Extendedsecurityupdatesai.dll

6.1.7601.24537

208,896

15-Nov-2019

01:43

Fastprox.dll

6.1.7601.24537

2,100,224

15-Nov-2019

02:08

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24537

187,904

15-Nov-2019

02:08

Locdrv.dll

6.1.7601.24537

803,328

15-Nov-2019

02:08

Mofd.dll

6.1.7601.24537

643,584

15-Nov-2019

02:08

Mofinstall.dll

6.1.7601.24537

193,024

15-Nov-2019

02:08

Msdelta.dll

6.1.7601.24537

890,880

15-Nov-2019

02:08

Mspatcha.dll

6.1.7601.24537

111,104

15-Nov-2019

02:08

Oemhelpins.dll

6.1.7601.24537

420,352

15-Nov-2019

02:08

Pkgmgr.exe

6.1.7601.24537

334,848

15-Nov-2019

01:43

Poqexec.exe

6.1.7601.24537

272,384

15-Nov-2019

01:43

Repdrvfs.dll

6.1.7601.24537

1,067,520

15-Nov-2019

02:08

Smiengine.dll

6.1.7601.24537

1,953,792

15-Nov-2019

02:08

Smipi.dll

6.1.7601.24537

186,880

15-Nov-2019

02:08

Svcini.exe

6.1.7601.24537

41,984

15-Nov-2019

01:43

Wbemcomn.dll

6.1.7601.24537

1,005,056

15-Nov-2019

02:08

Wbemcore.dll

6.1.7601.24537

2,959,872

15-Nov-2019

02:08

Wbemprox.dll

6.1.7601.24537

102,912

15-Nov-2019

02:08

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24537

5,137,408

15-Nov-2019

02:08

Wdscore.dll

6.1.7601.24537

600,576

15-Nov-2019

02:08

Wmicmiplugin.dll

6.1.7601.24537

940,544

15-Nov-2019

02:08

Wmiutils.dll

6.1.7601.24537

273,408

15-Nov-2019

02:08

Wrpint.dll

6.1.7601.24537

128,000

15-Nov-2019

02:08

Xmllite.dll

1.3.1001.0

449,024

15-Nov-2019

02:08

Apds.dll

6.1.7601.24537

1,798,144

15-Nov-2019

02:29

Apircl.dll

6.1.7601.24537

223,744

15-Nov-2019

02:29

Apss.dll

6.1.7601.24537

201,216

15-Nov-2019

02:29

Cbscore.dll

6.1.7601.24537

845,824

15-Nov-2019

02:29

Cbsmsg.dll

6.1.7601.24537

28,672

15-Nov-2019

01:58

Cmiadapter.dll

6.1.7601.24537

120,320

15-Nov-2019

02:29

Cmitrust.dll

6.1.7601.24537

296,960

15-Nov-2019

02:29

Cmiv2.dll

6.1.7601.24537

2,040,832

15-Nov-2019

02:29

Cntrtextinstaller.dll

6.1.7601.24537

143,872

15-Nov-2019

02:29

Dpx.dll

6.1.7601.24537

257,024

15-Nov-2019

02:29

Drupdate.dll

6.1.7601.24537

174,080

15-Nov-2019

02:29

Drvstore.dll

6.1.7601.24537

323,584

15-Nov-2019

02:29

Esscli.dll

6.1.7601.24537

266,240

15-Nov-2019

02:29

Extendedsecurityupdatesai.dll

6.1.7601.24537

85,504

15-Nov-2019

01:58

Fastprox.dll

6.1.7601.24537

606,720

15-Nov-2019

02:29

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24537

105,472

15-Nov-2019

02:29

Locdrv.dll

6.1.7601.24537

229,888

15-Nov-2019

02:29

Mofd.dll

6.1.7601.24537

192,000

15-Nov-2019

02:29

Mofinstall.dll

6.1.7601.24537

58,880

15-Nov-2019

02:29

Msdelta.dll

6.1.7601.24537

305,664

15-Nov-2019

02:29

Mspatcha.dll

6.1.7601.24537

35,328

15-Nov-2019

02:29

Oemhelpins.dll

6.1.7601.24537

151,040

15-Nov-2019

02:29

Pkgmgr.exe

6.1.7601.24537

209,920

15-Nov-2019

01:58

Poqexec.exe

6.1.7601.24537

123,904

15-Nov-2019

01:58

Repdrvfs.dll

6.1.7601.24537

302,080

15-Nov-2019

02:29

Smiengine.dll

6.1.7601.24537

697,344

15-Nov-2019

02:29

Smipi.dll

6.1.7601.24537

98,816

15-Nov-2019

02:29

Svcini.exe

6.1.7601.24537

16,384

15-Nov-2019

01:58

Wbemcomn.dll

6.1.7601.24537

363,520

15-Nov-2019

02:29

Wbemcore.dll

6.1.7601.24537

780,288

15-Nov-2019

02:29

Wbemprox.dll

6.1.7601.24537

29,184

15-Nov-2019

02:29

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24537

1,913,344

15-Nov-2019

02:29

Wdscore.dll

6.1.7601.24537

190,464

15-Nov-2019

02:29

Wmicmiplugin.dll

6.1.7601.24537

351,744

15-Nov-2019

02:29

Wmiutils.dll

6.1.7601.24537

85,504

15-Nov-2019

02:29

Wrpint.dll

6.1.7601.24537

54,272

15-Nov-2019

01:56

Xmllite.dll

1.3.1001.0

180,736

15-Nov-2019

02:29

For all supported x64-based versions

File name

File version

File size

Date

Time

Apds.dll

6.1.7601.24537

2,172,928

15-Nov-2019

02:22

Apircl.dll

6.1.7601.24537

276,480

15-Nov-2019

02:22

Apss.dll

6.1.7601.24537

235,520

15-Nov-2019

02:22

Cbscore.dll

6.1.7601.24537

976,896

15-Nov-2019

02:21

Cbsmsg.dll

6.1.7601.24537

28,672

15-Nov-2019

02:21

Cmiadapter.dll

6.1.7601.24537

125,952

15-Nov-2019

02:21

Cmitrust.dll

6.1.7601.24537

479,232

15-Nov-2019

02:21

Cmiv2.dll

6.1.7601.24537

3,739,136

15-Nov-2019

02:21

Cntrtextinstaller.dll

6.1.7601.24537

170,496

15-Nov-2019

02:21

Dpx.dll

6.1.7601.24537

399,872

15-Nov-2019

02:21

Drupdate.dll

6.1.7601.24537

204,288

15-Nov-2019

02:21

Drvstore.dll

6.1.7601.24537

423,936

15-Nov-2019

02:21

Esscli.dll

6.1.7601.24537

440,320

15-Nov-2019

02:21

Extendedsecurityupdatesai.dll

6.1.7601.24537

98,304

15-Nov-2019

01:48

Fastprox.dll

6.1.7601.24537

909,824

15-Nov-2019

02:21

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24537

142,336

15-Nov-2019

02:21

Locdrv.dll

6.1.7601.24537

370,176

15-Nov-2019

02:22

Mofd.dll

6.1.7601.24537

278,528

15-Nov-2019

02:21

Mofinstall.dll

6.1.7601.24537

76,288

15-Nov-2019

02:21

Msdelta.dll

6.1.7601.24537

452,096

15-Nov-2019

02:21

Mspatcha.dll

6.1.7601.24537

46,592

15-Nov-2019

02:21

Oemhelpins.dll

6.1.7601.24537

222,208

15-Nov-2019

02:22

Pkgmgr.exe

6.1.7601.24537

199,168

15-Nov-2019

01:48

Poqexec.exe

6.1.7601.24537

142,336

15-Nov-2019

01:48

Repdrvfs.dll

6.1.7601.24537

454,144

15-Nov-2019

02:22

Smiengine.dll

6.1.7601.24537

933,376

15-Nov-2019

02:22

Smipi.dll

6.1.7601.24537

104,448

15-Nov-2019

02:22

Svcini.exe

6.1.7601.24537

17,920

15-Nov-2019

01:48

Wbemcomn.dll

6.1.7601.24537

529,920

15-Nov-2019

02:22

Wbemcore.dll

6.1.7601.24537

1,225,216

15-Nov-2019

02:22

Wbemprox.dll

6.1.7601.24537

43,520

15-Nov-2019

02:22

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:57

Wcp.dll

6.1.7601.24537

2,762,752

15-Nov-2019

02:22

Wdscore.dll

6.1.7601.24537

271,872

15-Nov-2019

02:22

Wmicmiplugin.dll

6.1.7601.24537

525,824

15-Nov-2019

02:22

Wmiutils.dll

6.1.7601.24537

137,216

15-Nov-2019

02:22

Wrpint.dll

6.1.7601.24537

60,928

15-Nov-2019

02:22

Xmllite.dll

1.3.1001.0

198,656

15-Nov-2019

02:22

Apds.dll

6.1.7601.24537

1,798,144

15-Nov-2019

02:29

Apircl.dll

6.1.7601.24537

223,744

15-Nov-2019

02:29

Apss.dll

6.1.7601.24537

201,216

15-Nov-2019

02:29

Cbscore.dll

6.1.7601.24537

845,824

15-Nov-2019

02:29

Cbsmsg.dll

6.1.7601.24537

28,672

15-Nov-2019

01:58

Cmiadapter.dll

6.1.7601.24537

120,320

15-Nov-2019

02:29

Cmitrust.dll

6.1.7601.24537

296,960

15-Nov-2019

02:29

Cmiv2.dll

6.1.7601.24537

2,040,832

15-Nov-2019

02:29

Cntrtextinstaller.dll

6.1.7601.24537

143,872

15-Nov-2019

02:29

Dpx.dll

6.1.7601.24537

257,024

15-Nov-2019

02:29

Drupdate.dll

6.1.7601.24537

174,080

15-Nov-2019

02:29

Drvstore.dll

6.1.7601.24537

323,584

15-Nov-2019

02:29

Esscli.dll

6.1.7601.24537

266,240

15-Nov-2019

02:29

Extendedsecurityupdatesai.dll

6.1.7601.24537

85,504

15-Nov-2019

01:58

Fastprox.dll

6.1.7601.24537

606,720

15-Nov-2019

02:29

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24537

105,472

15-Nov-2019

02:29

Locdrv.dll

6.1.7601.24537

229,888

15-Nov-2019

02:29

Mofd.dll

6.1.7601.24537

192,000

15-Nov-2019

02:29

Mofinstall.dll

6.1.7601.24537

58,880

15-Nov-2019

02:29

Msdelta.dll

6.1.7601.24537

305,664

15-Nov-2019

02:29

Mspatcha.dll

6.1.7601.24537

35,328

15-Nov-2019

02:29

Oemhelpins.dll

6.1.7601.24537

151,040

15-Nov-2019

02:29

Pkgmgr.exe

6.1.7601.24537

209,920

15-Nov-2019

01:58

Poqexec.exe

6.1.7601.24537

123,904

15-Nov-2019

01:58

Repdrvfs.dll

6.1.7601.24537

302,080

15-Nov-2019

02:29

Smiengine.dll

6.1.7601.24537

697,344

15-Nov-2019

02:29

Smipi.dll

6.1.7601.24537

98,816

15-Nov-2019

02:29

Svcini.exe

6.1.7601.24537

16,384

15-Nov-2019

01:58

Wbemcomn.dll

6.1.7601.24537

363,520

15-Nov-2019

02:29

Wbemcore.dll

6.1.7601.24537

780,288

15-Nov-2019

02:29

Wbemprox.dll

6.1.7601.24537

29,184

15-Nov-2019

02:29

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24537

1,913,344

15-Nov-2019

02:29

Wdscore.dll

6.1.7601.24537

190,464

15-Nov-2019

02:29

Wmicmiplugin.dll

6.1.7601.24537

351,744

15-Nov-2019

02:29

Wmiutils.dll

6.1.7601.24537

85,504

15-Nov-2019

02:29

Wrpint.dll

6.1.7601.24537

54,272

15-Nov-2019

01:56

Xmllite.dll

1.3.1001.0

180,736

15-Nov-2019

02:29

References

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

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