Important: 

  • Windows 7 and Windows Server 2008 R2 have reached the end of mainstream support in January 2020 and are now in extended support. For more information, see here.

  • Windows Embedded Standard 7 reached the end of mainstream support in October 2020 and is now in extended support. For more information, see here.

  • Windows Embedded POSReady 7 reached the end of mainstream support in October 2016 and is in extended support. For more information, see here.

  • Windows Thin PC reached the end of mainstream support in in October 2016 and is in extended support. For more information, see here.

  • Verify that you have installed the required updates listed in the How to get this update section before installing this update.

Applies to

  • Windows 7 Service Pack 1 for x86-based systems 

  • Windows 7 Service Pack 1 for x64-based systems

  • Windows Server 2008 R2 Service Pack 1 for x64-based systems

  • Windows Server 2008 R2 Service Pack 1 (Server Core installation) for x64-based systems

Summary

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

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.

Restart information 

You do not have to restart your device after you apply this update.

Removal information

Servicing stack updates (SSUs) make changes to how updates are installed and cannot be uninstalled from the device.

Update replacement information 

This update replaces the previously released update KB4592510.

File Information

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 name

File version

Date

Time

File size

mofinstall.dll

6.1.7601.25652

7-Jun-2021

23:27

59,392

esscli.dll

6.1.7601.25652

7-Jun-2021

23:27

266,240

mofd.dll

6.1.7601.25652

7-Jun-2021

23:27

193,536

repdrvfs.dll

6.1.7601.25652

7-Jun-2021

23:27

302,080

fastprox.dll

6.1.7601.25652

7-Jun-2021

23:27

606,720

wbemcomn.dll

6.1.7601.25652

7-Jun-2021

23:27

363,520

wbemcore.dll

6.1.7601.25652

7-Jun-2021

23:27

774,656

wmiutils.dll

6.1.7601.25652

7-Jun-2021

23:27

85,504

wbemprox.dll

6.1.7601.25652

7-Jun-2021

23:27

29,184

xmllite.dll

1.3.1001.0

7-Jun-2021

23:27

180,736

wdscore.dll

6.1.7601.25652

7-Jun-2021

23:27

190,464

CntrtextInstaller.dll

6.1.7601.25652

7-Jun-2021

23:27

143,872

drvstore.dll

6.1.7601.25652

7-Jun-2021

23:27

324,096

dpx.dll

6.1.7601.25652

7-Jun-2021

23:27

257,024

msdelta.dll

6.1.7601.25652

7-Jun-2021

23:27

305,664

mspatcha.dll

6.1.7601.25652

7-Jun-2021

23:27

35,328

PkgMgr.exe

6.1.7601.25652

7-Jun-2021

23:02

209,920

cmiv2.dll

6.1.7601.25652

7-Jun-2021

23:27

2,046,464

cmitrust.dll

6.1.7601.25652

7-Jun-2021

23:27

297,472

locdrv.dll

6.1.7601.25652

7-Jun-2021

23:27

228,352

WcmTypes.xsd

Not versioned

12-Oct-2020

16:20

1,047

helpcins.dll

6.1.7601.25652

7-Jun-2021

23:27

105,472

OEMHelpIns.dll

6.1.7601.25652

7-Jun-2021

23:27

151,552

apds.dll

6.1.7601.25652

7-Jun-2021

23:27

1,799,168

apss.dll

6.1.7601.25652

7-Jun-2021

23:27

201,216

apircl.dll

6.1.7601.25652

7-Jun-2021

23:27

223,744

CbsMsg.dll

6.1.7601.25652

7-Jun-2021

23:02

28,672

CbsCore.dll

6.1.7601.25652

7-Jun-2021

23:27

846,336

DrUpdate.dll

6.1.7601.25652

7-Jun-2021

23:27

174,080

wrpint.dll

6.1.7601.25652

7-Jun-2021

23:00

54,272

wcp.dll

6.1.7601.25652

7-Jun-2021

23:27

1,913,344

cmiadapter.dll

6.1.7601.25652

7-Jun-2021

23:27

120,832

smiengine.dll

6.1.7601.25652

7-Jun-2021

23:27

697,856

smipi.dll

6.1.7601.25652

7-Jun-2021

23:27

98,816

GlobalInstallOrder.xml

Not versioned

12-Oct-2020

16:19

1,977,464

poqexec.exe

6.1.7601.25652

7-Jun-2021

23:02

123,904

x86_installed

Not versioned

12-Oct-2020

16:19

9

SvcIni.exe

6.1.7601.25652

7-Jun-2021

23:02

16,384

wmicmiplugin.dll

6.1.7601.25652

7-Jun-2021

23:27

351,744

ExtendedSecurityUpdatesAI.dll

6.1.7601.25652

7-Jun-2021

23:02

93,184

File name

File version

Date

Time

File size

mofinstall.dll

6.1.7601.25652

7-Jun-2021

23:36

76,800

esscli.dll

6.1.7601.25652

7-Jun-2021

23:36

440,320

mofd.dll

6.1.7601.25652

7-Jun-2021

23:36

280,064

repdrvfs.dll

6.1.7601.25652

7-Jun-2021

23:36

454,144

fastprox.dll

6.1.7601.25652

7-Jun-2021

23:36

909,824

wbemcomn.dll

6.1.7601.25652

7-Jun-2021

23:36

529,920

wbemcore.dll

6.1.7601.25652

7-Jun-2021

23:36

1,220,096

wmiutils.dll

6.1.7601.25652

7-Jun-2021

23:36

137,216

wbemprox.dll

6.1.7601.25652

7-Jun-2021

23:36

43,520

xmllite.dll

1.3.1001.0

7-Jun-2021

23:36

198,656

wdscore.dll

6.1.7601.25652

7-Jun-2021

23:36

271,872

CntrtextInstaller.dll

6.1.7601.25652

7-Jun-2021

23:36

171,008

drvstore.dll

6.1.7601.25652

7-Jun-2021

23:36

423,936

dpx.dll

6.1.7601.25652

7-Jun-2021

23:36

399,872

msdelta.dll

6.1.7601.25652

7-Jun-2021

23:36

452,096

mspatcha.dll

6.1.7601.25652

7-Jun-2021

23:36

46,592

PkgMgr.exe

6.1.7601.25652

7-Jun-2021

23:04

199,168

cmiv2.dll

6.1.7601.25652

7-Jun-2021

23:36

3,749,888

cmitrust.dll

6.1.7601.25652

7-Jun-2021

23:36

479,232

locdrv.dll

6.1.7601.25652

7-Jun-2021

23:36

370,176

WcmTypes.xsd

Not versioned

12-Oct-2020

16:20

1,047

helpcins.dll

6.1.7601.25652

7-Jun-2021

23:36

142,336

OEMHelpIns.dll

6.1.7601.25652

7-Jun-2021

23:36

222,720

apds.dll

6.1.7601.25652

7-Jun-2021

23:36

2,174,464

apss.dll

6.1.7601.25652

7-Jun-2021

23:36

235,520

apircl.dll

6.1.7601.25652

7-Jun-2021

23:36

276,992

CbsMsg.dll

6.1.7601.25652

7-Jun-2021

23:36

28,672

CbsCore.dll

6.1.7601.25652

7-Jun-2021

23:36

977,408

DrUpdate.dll

6.1.7601.25652

7-Jun-2021

23:36

204,288

wrpint.dll

6.1.7601.25652

7-Jun-2021

23:36

60,928

wcp.dll

6.1.7601.25652

7-Jun-2021

23:36

2,762,752

cmiadapter.dll

6.1.7601.25652

7-Jun-2021

23:36

125,952

smiengine.dll

6.1.7601.25652

7-Jun-2021

23:36

934,400

smipi.dll

6.1.7601.25652

7-Jun-2021

23:36

104,448

GlobalInstallOrder.xml

Not versioned

12-Oct-2020

16:19

1,977,464

poqexec.exe

6.1.7601.25652

7-Jun-2021

23:04

142,336

amd64_installed

Not versioned

12-Oct-2020

16:19

9

SvcIni.exe

6.1.7601.25652

7-Jun-2021

23:04

17,920

wmicmiplugin.dll

6.1.7601.25652

7-Jun-2021

23:36

525,824

ExtendedSecurityUpdatesAI.dll

6.1.7601.25652

7-Jun-2021

23:04

108,544

mofinstall.dll

6.1.7601.25652

7-Jun-2021

23:27

59,392

esscli.dll

6.1.7601.25652

7-Jun-2021

23:27

266,240

mofd.dll

6.1.7601.25652

7-Jun-2021

23:27

193,536

repdrvfs.dll

6.1.7601.25652

7-Jun-2021

23:27

302,080

fastprox.dll

6.1.7601.25652

7-Jun-2021

23:27

606,720

wbemcomn.dll

6.1.7601.25652

7-Jun-2021

23:27

363,520

wbemcore.dll

6.1.7601.25652

7-Jun-2021

23:27

774,656

wmiutils.dll

6.1.7601.25652

7-Jun-2021

23:27

85,504

wbemprox.dll

6.1.7601.25652

7-Jun-2021

23:27

29,184

xmllite.dll

1.3.1001.0

7-Jun-2021

23:27

180,736

wdscore.dll

6.1.7601.25652

7-Jun-2021

23:27

190,464

CntrtextInstaller.dll

6.1.7601.25652

7-Jun-2021

23:27

143,872

drvstore.dll

6.1.7601.25652

7-Jun-2021

23:27

324,096

dpx.dll

6.1.7601.25652

7-Jun-2021

23:27

257,024

msdelta.dll

6.1.7601.25652

7-Jun-2021

23:27

305,664

mspatcha.dll

6.1.7601.25652

7-Jun-2021

23:27

35,328

PkgMgr.exe

6.1.7601.25652

7-Jun-2021

23:02

209,920

cmiv2.dll

6.1.7601.25652

7-Jun-2021

23:27

2,046,464

cmitrust.dll

6.1.7601.25652

7-Jun-2021

23:27

297,472

locdrv.dll

6.1.7601.25652

7-Jun-2021

23:27

228,352

helpcins.dll

6.1.7601.25652

7-Jun-2021

23:27

105,472

OEMHelpIns.dll

6.1.7601.25652

7-Jun-2021

23:27

151,552

apds.dll

6.1.7601.25652

7-Jun-2021

23:27

1,799,168

apss.dll

6.1.7601.25652

7-Jun-2021

23:27

201,216

apircl.dll

6.1.7601.25652

7-Jun-2021

23:27

223,744

CbsMsg.dll

6.1.7601.25652

7-Jun-2021

23:02

28,672

CbsCore.dll

6.1.7601.25652

7-Jun-2021

23:27

846,336

DrUpdate.dll

6.1.7601.25652

7-Jun-2021

23:27

174,080

wrpint.dll

6.1.7601.25652

7-Jun-2021

23:00

54,272

wcp.dll

6.1.7601.25652

7-Jun-2021

23:27

1,913,344

cmiadapter.dll

6.1.7601.25652

7-Jun-2021

23:27

120,832

smiengine.dll

6.1.7601.25652

7-Jun-2021

23:27

697,856

smipi.dll

6.1.7601.25652

7-Jun-2021

23:27

98,816

poqexec.exe

6.1.7601.25652

7-Jun-2021

23:02

123,904

x86_installed

Not versioned

12-Oct-2020

16:19

9

SvcIni.exe

6.1.7601.25652

7-Jun-2021

23:02

16,384

wmicmiplugin.dll

6.1.7601.25652

7-Jun-2021

23:27

351,744

ExtendedSecurityUpdatesAI.dll

6.1.7601.25652

7-Jun-2021

23:02

93,184

References

For information on SSUs, see the following articles:

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

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