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.

Important: 

Windows 7 and Windows Server 2008 R2 have reached the end of mainstream support and are now in extended security update (ESU) support.

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

For information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following article. To view other notes and messages, see the Windows 7 and Windows Server 2008 R2 update history home page.

Applies to

  • Windows 7 for 32-bit Systems Service Pack 1

  • Windows 7 for x64-based Systems Service Pack 1

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

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

How to get this update

Before installing this update

IMPORTANT Customers who have purchased the Extended Security Update (ESU) for on-premises versions of these operating systems must follow the procedures in KB4522133 to continue receiving security updates. Extended support ended as follows:

  • For Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1, extended support ended on January 14, 2020.

For more information about ESU and which editions are supported, see KB4497181.

Prerequisites

You must install the updates listed below and restart your device before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup and applying Microsoft security fixes.

  1. The March 12, 2019 servicing stack update (SSU) (KB4490628). To get the standalone package for this SSU, search for it in the Microsoft Update Catalog. This update is required to install updates that are only SHA-2 signed.

  2. The latest SHA-2 update (KB4474419) released September 10, 2019. If you are using Windows Update, the latest SHA-2 update will be offered to you automatically. This update is required to install updates that are only SHA-2 signed. For more information on SHA-2 updates, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS.

  3. To get this security update, you must reinstall the "Extended Security Updates (ESU) Licensing Preparation Package" (KB4538483) or the "Update for the Extended Security Updates (ESU) Licensing Preparation Package" (KB4575903) even if you previously installed the ESU key. The ESU licensing preparation package will be offered to you from WSUS. To get the standalone package for ESU licensing preparation package, search for it in the Microsoft Update Catalog.

After you install the items above, we strongly recommend that you install the latest SSU. If you are using Windows Update, the latest SSU will be offered to you automatically if you are an ESU customer. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Install 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).

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 KB5006749.

File Information

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

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

6.1.7601.25850

6-Jan-2022

20:12

59,392

esscli.dll

6.1.7601.25850

6-Jan-2022

20:12

266,240

mofd.dll

6.1.7601.25850

6-Jan-2022

20:12

193,536

repdrvfs.dll

6.1.7601.25850

6-Jan-2022

20:12

301,568

fastprox.dll

6.1.7601.25850

6-Jan-2022

20:12

606,208

wbemcomn.dll

6.1.7601.25850

6-Jan-2022

20:12

363,520

wbemcore.dll

6.1.7601.25850

6-Jan-2022

20:12

774,656

wmiutils.dll

6.1.7601.25850

6-Jan-2022

20:12

85,504

wbemprox.dll

6.1.7601.25850

6-Jan-2022

20:12

29,184

xmllite.dll

1.3.1001.0

6-Jan-2022

20:12

180,736

wdscore.dll

6.1.7601.25850

6-Jan-2022

20:12

189,952

CntrtextInstaller.dll

6.1.7601.25850

6-Jan-2022

20:12

143,872

drvstore.dll

6.1.7601.25850

6-Jan-2022

20:12

323,584

dpx.dll

6.1.7601.25850

6-Jan-2022

20:12

257,024

msdelta.dll

6.1.7601.25850

6-Jan-2022

20:12

305,152

mspatcha.dll

6.1.7601.25850

6-Jan-2022

20:12

35,328

PkgMgr.exe

6.1.7601.25850

6-Jan-2022

19:45

209,920

cmiv2.dll

6.1.7601.25850

6-Jan-2022

20:12

2,046,464

cmitrust.dll

6.1.7601.25850

6-Jan-2022

20:12

297,472

locdrv.dll

6.1.7601.25850

6-Jan-2022

20:12

228,352

WcmTypes.xsd

Not versioned

19-Oct-2021

17:54

1,047

helpcins.dll

6.1.7601.25850

6-Jan-2022

20:12

105,472

OEMHelpIns.dll

6.1.7601.25850

6-Jan-2022

20:12

151,552

apds.dll

6.1.7601.25850

6-Jan-2022

20:12

1,799,168

apss.dll

6.1.7601.25850

6-Jan-2022

20:12

201,216

apircl.dll

6.1.7601.25850

6-Jan-2022

20:12

223,744

CbsMsg.dll

6.1.7601.25850

6-Jan-2022

19:45

28,672

CbsCore.dll

6.1.7601.25850

6-Jan-2022

20:12

846,336

DrUpdate.dll

6.1.7601.25850

6-Jan-2022

20:12

173,568

wrpint.dll

6.1.7601.25850

6-Jan-2022

19:43

54,272

wcp.dll

6.1.7601.25850

6-Jan-2022

20:12

1,912,832

cmiadapter.dll

6.1.7601.25850

6-Jan-2022

20:12

120,832

smiengine.dll

6.1.7601.25850

6-Jan-2022

20:12

697,856

smipi.dll

6.1.7601.25850

6-Jan-2022

20:12

98,816

GlobalInstallOrder.xml

Not versioned

18-Oct-2021

17:21

1,977,464

poqexec.exe

6.1.7601.25850

6-Jan-2022

19:45

123,904

x86_installed

Not versioned

19-Oct-2021

17:23

9

SvcIni.exe

6.1.7601.25850

6-Jan-2022

19:45

16,384

wmicmiplugin.dll

6.1.7601.25850

6-Jan-2022

20:12

351,744

ExtendedSecurityUpdatesAI.dll

6.1.7601.25850

6-Jan-2022

19:45

138,752

File name

File version

Date

Time

File size

mofinstall.dll

6.1.7601.25850

6-Jan-2022

20:17

76,800

esscli.dll

6.1.7601.25850

6-Jan-2022

20:17

440,320

mofd.dll

6.1.7601.25850

6-Jan-2022

20:17

280,064

repdrvfs.dll

6.1.7601.25850

6-Jan-2022

20:17

453,632

fastprox.dll

6.1.7601.25850

6-Jan-2022

20:17

909,312

wbemcomn.dll

6.1.7601.25850

6-Jan-2022

20:17

529,920

wbemcore.dll

6.1.7601.25850

6-Jan-2022

20:17

1,220,096

wmiutils.dll

6.1.7601.25850

6-Jan-2022

20:17

137,216

wbemprox.dll

6.1.7601.25850

6-Jan-2022

20:17

43,520

xmllite.dll

1.3.1001.0

6-Jan-2022

20:17

198,656

wdscore.dll

6.1.7601.25850

6-Jan-2022

20:17

271,360

CntrtextInstaller.dll

6.1.7601.25850

6-Jan-2022

20:17

171,008

drvstore.dll

6.1.7601.25850

6-Jan-2022

20:17

423,424

dpx.dll

6.1.7601.25850

6-Jan-2022

20:17

399,872

msdelta.dll

6.1.7601.25850

6-Jan-2022

20:17

451,584

mspatcha.dll

6.1.7601.25850

6-Jan-2022

20:17

46,592

PkgMgr.exe

6.1.7601.25850

6-Jan-2022

19:44

199,168

cmiv2.dll

6.1.7601.25850

6-Jan-2022

20:17

3,749,888

cmitrust.dll

6.1.7601.25850

6-Jan-2022

20:17

479,232

locdrv.dll

6.1.7601.25850

6-Jan-2022

20:17

370,176

WcmTypes.xsd

Not versioned

19-Oct-2021

17:54

1,047

helpcins.dll

6.1.7601.25850

6-Jan-2022

20:17

142,336

OEMHelpIns.dll

6.1.7601.25850

6-Jan-2022

20:17

222,720

apds.dll

6.1.7601.25850

6-Jan-2022

20:17

2,174,464

apss.dll

6.1.7601.25850

6-Jan-2022

20:17

235,520

apircl.dll

6.1.7601.25850

6-Jan-2022

20:17

276,992

CbsMsg.dll

6.1.7601.25850

6-Jan-2022

20:17

28,672

CbsCore.dll

6.1.7601.25850

6-Jan-2022

20:17

977,408

DrUpdate.dll

6.1.7601.25850

6-Jan-2022

20:17

203,776

wrpint.dll

6.1.7601.25850

6-Jan-2022

20:17

60,928

wcp.dll

6.1.7601.25850

6-Jan-2022

20:17

2,762,752

cmiadapter.dll

6.1.7601.25850

6-Jan-2022

20:17

125,952

smiengine.dll

6.1.7601.25850

6-Jan-2022

20:17

934,400

smipi.dll

6.1.7601.25850

6-Jan-2022

20:17

104,448

GlobalInstallOrder.xml

Not versioned

18-Oct-2021

17:21

1,977,464

poqexec.exe

6.1.7601.25850

6-Jan-2022

19:44

142,336

amd64_installed

Not versioned

19-Oct-2021

17:23

9

SvcIni.exe

6.1.7601.25850

6-Jan-2022

19:44

17,920

wmicmiplugin.dll

6.1.7601.25850

6-Jan-2022

20:17

525,824

ExtendedSecurityUpdatesAI.dll

6.1.7601.25850

6-Jan-2022

19:44

175,616

mofinstall.dll

6.1.7601.25850

6-Jan-2022

20:12

59,392

esscli.dll

6.1.7601.25850

6-Jan-2022

20:12

266,240

mofd.dll

6.1.7601.25850

6-Jan-2022

20:12

193,536

repdrvfs.dll

6.1.7601.25850

6-Jan-2022

20:12

301,568

fastprox.dll

6.1.7601.25850

6-Jan-2022

20:12

606,208

wbemcomn.dll

6.1.7601.25850

6-Jan-2022

20:12

363,520

wbemcore.dll

6.1.7601.25850

6-Jan-2022

20:12

774,656

wmiutils.dll

6.1.7601.25850

6-Jan-2022

20:12

85,504

wbemprox.dll

6.1.7601.25850

6-Jan-2022

20:12

29,184

xmllite.dll

1.3.1001.0

6-Jan-2022

20:12

180,736

wdscore.dll

6.1.7601.25850

6-Jan-2022

20:12

189,952

CntrtextInstaller.dll

6.1.7601.25850

6-Jan-2022

20:12

143,872

drvstore.dll

6.1.7601.25850

6-Jan-2022

20:12

323,584

dpx.dll

6.1.7601.25850

6-Jan-2022

20:12

257,024

msdelta.dll

6.1.7601.25850

6-Jan-2022

20:12

305,152

mspatcha.dll

6.1.7601.25850

6-Jan-2022

20:12

35,328

PkgMgr.exe

6.1.7601.25850

6-Jan-2022

19:45

209,920

cmiv2.dll

6.1.7601.25850

6-Jan-2022

20:12

2,046,464

cmitrust.dll

6.1.7601.25850

6-Jan-2022

20:12

297,472

locdrv.dll

6.1.7601.25850

6-Jan-2022

20:12

228,352

helpcins.dll

6.1.7601.25850

6-Jan-2022

20:12

105,472

OEMHelpIns.dll

6.1.7601.25850

6-Jan-2022

20:12

151,552

apds.dll

6.1.7601.25850

6-Jan-2022

20:12

1,799,168

apss.dll

6.1.7601.25850

6-Jan-2022

20:12

201,216

apircl.dll

6.1.7601.25850

6-Jan-2022

20:12

223,744

CbsMsg.dll

6.1.7601.25850

6-Jan-2022

19:45

28,672

CbsCore.dll

6.1.7601.25850

6-Jan-2022

20:12

846,336

DrUpdate.dll

6.1.7601.25850

6-Jan-2022

20:12

173,568

wrpint.dll

6.1.7601.25850

6-Jan-2022

19:43

54,272

wcp.dll

6.1.7601.25850

6-Jan-2022

20:12

1,912,832

cmiadapter.dll

6.1.7601.25850

6-Jan-2022

20:12

120,832

smiengine.dll

6.1.7601.25850

6-Jan-2022

20:12

697,856

smipi.dll

6.1.7601.25850

6-Jan-2022

20:12

98,816

GlobalInstallOrder.xml

Not versioned

18-Oct-2021

17:21

1,977,464

poqexec.exe

6.1.7601.25850

6-Jan-2022

19:45

123,904

x86_installed

Not versioned

19-Oct-2021

17:23

9

SvcIni.exe

6.1.7601.25850

6-Jan-2022

19:45

16,384

wmicmiplugin.dll

6.1.7601.25850

6-Jan-2022

20:12

351,744

ExtendedSecurityUpdatesAI.dll

6.1.7601.25850

6-Jan-2022

19:45

138,752

References

For information on SSUs, see the following articles:

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

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