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REMINDER

  • Windows 8.1 reached end of support (EOS) on January 10, 2023, at which point technical assistance and software updates are no longer provided. If you have devices running Windows 8.1, we recommend upgrading them to a more current, in-service, and supported Windows release. If devices do not meet the technical requirements to run a more current release of Windows, we recommend that you replace the device with one that supports Windows 11.

    Microsoft will not be offering an Extended Security Update (ESU) program for Windows 8.1. Continuing to use Windows 8.1 after January 10, 2023 may increase an organization’s exposure to security risks or impact its ability to meet compliance obligations. For more information, see Windows 8.1 support will end on January 10, 2023.

    We recommend upgrading to a later version of Windows.

    Upgrade to a later version of Windows

  • Windows Server 2012 R2 reached end of support (EOS) on October 10, 2023. Extended Security Updates (ESUs) are available for purchase and will continue for three years, renewable on an annual basis, until the final date on October 13, 2026. For more information, see Windows Server End of Support: Key Dates. For information about the procedure to continue receiving security updates, see KB5031043.

    We recommend upgrading to a later version of Windows Server.

    Learn about upgrading Windows Server

  • Windows Embedded 8.1 Industry Enterprise and Windows Embedded 8.1 Industry Pro reached end of support (EOS) on July 11, 2023. Therefore, technical assistance and software updates are no longer provided.

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

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

Yes

This update is available through Windows Update. It will be downloaded and installed automatically. 

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

To download updates from the Update Catalog, see Steps to download updates from the Windows Update Catalog.

Windows Server Update Services (WSUS)

Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

Product: Windows Server 2012 R2

Classification: Security Updates

Prerequisites

There are no prerequisites to apply this update.

Restart information 

You don't have to restart your computer 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 KB5032308.

File Information

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

File name

File version

Date

Time

File size

httpai.dll

6.3.9600.21764

18-Dec-23

21:46

55,296

peerdistai.dll

6.3.9600.21764

18-Dec-23

21:46

65,024

PrintAdvancedInstaller.dll

6.3.9600.21764

18-Dec-23

21:56

99,328

msdtcadvancedinstaller.dll

6.3.9600.21764

18-Dec-23

21:46

215,040

netfxconfig.dll

6.3.9600.21764

18-Dec-23

22:09

40,448

ConfigureIEOptionalComponentsAI.dll

6.3.9600.21764

18-Dec-23

21:46

76,800

IEFileInstallAI.dll

6.3.9600.21764

18-Dec-23

21:43

66,560

servicemodelregai.dll

6.3.9600.21764

18-Dec-23

21:46

96,768

SetIEInstalledDateAI.dll

6.3.9600.21764

18-Dec-23

21:46

49,152

ceipfwdai.dll

6.3.9600.21764

18-Dec-23

21:44

197,632

bcdeditai.dll

6.3.9600.21764

18-Dec-23

21:48

271,360

appxreg.dll

6.3.9600.21764

18-Dec-23

22:03

19,968

RegisterIEPKeysAI.dll

6.3.9600.21764

18-Dec-23

21:45

23,040

cmipnpinstall.dll

6.3.9600.21764

18-Dec-23

22:07

195,072

securebootai.dll

6.3.9600.21764

18-Dec-23

21:48

68,096

winsockai.dll

6.3.9600.21764

18-Dec-23

21:46

71,680

ws2_helper.dll

6.3.9600.21764

18-Dec-23

21:47

50,176

cleanupai.dll

6.3.9600.21764

18-Dec-23

21:46

37,376

wdscore.dll

6.3.9600.21764

18-Dec-23

21:47

208,384

CntrtextInstaller.dll

6.3.9600.21764

18-Dec-23

21:49

128,000

drvstore.dll

6.3.9600.21764

18-Dec-23

21:49

610,304

dpx.dll

6.3.9600.21764

18-Dec-23

21:43

265,216

msdelta.dll

6.3.9600.21764

18-Dec-23

21:47

398,336

mspatcha.dll

6.3.9600.21764

18-Dec-23

21:49

36,864

cmiv2.dll

6.3.9600.21764

18-Dec-23

22:08

2,257,408

cmiaisupport.dll

6.3.9600.21764

18-Dec-23

21:45

2,162,688

cmitrust.dll

6.3.9600.21764

18-Dec-23

21:47

286,720

WcmTypes.xsd

Not versioned

18-Dec-23

19:39

1,047

CbsMsg.dll

6.3.9600.21764

18-Dec-23

21:49

41,984

CbsCore.dll

6.3.9600.21764

18-Dec-23

21:43

1,379,840

TiWorker.exe

6.3.9600.21764

18-Dec-23

21:46

190,464

TiFileFetcher.exe

6.3.9600.21764

18-Dec-23

21:44

355,328

DrUpdate.dll

6.3.9600.21764

18-Dec-23

21:48

202,240

wrpint.dll

6.3.9600.21764

18-Dec-23

21:43

56,320

wcp.dll

6.3.9600.21764

18-Dec-23

21:49

2,408,960

cmiadapter.dll

6.3.9600.21764

18-Dec-23

21:45

121,856

smiengine.dll

6.3.9600.21764

18-Dec-23

21:39

750,080

smipi.dll

6.3.9600.21764

18-Dec-23

21:46

59,904

poqexec.exe

6.3.9600.21764

18-Dec-23

22:20

129,536

x86_installed

Not versioned

18-Dec-23

19:36

9

bfsvc.dll

6.3.9600.21764

18-Dec-23

21:44

74,752

timezoneai.dll

6.3.9600.21764

18-Dec-23

21:48

86,528

GlobalInstallOrder.xml

Not versioned

18-Dec-23

19:39

1,249,919

luainstall.dll

6.3.9600.21764

18-Dec-23

21:47

43,008

fveupdateai.dll

6.3.9600.21764

18-Dec-23

21:46

57,344

ExtendedSecurityUpdatesAI.dll

6.3.9600.21764

18-Dec-23

22:06

160,256

mofinstall.dll

6.3.9600.21764

18-Dec-23

21:47

64,000

esscli.dll

6.3.9600.21764

18-Dec-23

21:46

293,376

mofd.dll

6.3.9600.21764

18-Dec-23

21:46

204,800

repdrvfs.dll

6.3.9600.21764

18-Dec-23

21:46

277,504

fastprox.dll

6.3.9600.21764

18-Dec-23

21:46

670,208

wbemcomn.dll

6.3.9600.21764

18-Dec-23

21:46

386,048

wbemcore.dll

6.3.9600.21764

18-Dec-23

21:45

925,696

wmiutils.dll

6.3.9600.21764

18-Dec-23

21:47

90,624

wbemprox.dll

6.3.9600.21764

18-Dec-23

21:46

29,696

wmicmiplugin.dll

6.3.9600.21764

18-Dec-23

21:43

392,704

sppinst.dll

6.3.9600.21764

18-Dec-23

21:43

646,656

cmifw.dll

6.3.9600.21764

18-Dec-23

21:45

80,896

FirewallOfflineAPI.dll

6.3.9600.21764

18-Dec-23

21:48

140,800

NetSetupAI.dll

6.3.9600.21764

18-Dec-23

21:47

55,296

NetSetupApi.dll

6.3.9600.21764

18-Dec-23

21:48

124,928

File name

File version

Date

Time

File size

httpai.dll

6.3.9600.21764

18-Dec-23

21:56

57,856

peerdistai.dll

6.3.9600.21764

18-Dec-23

21:56

72,192

PrintAdvancedInstaller.dll

6.3.9600.21764

18-Dec-23

22:12

102,400

msdtcadvancedinstaller.dll

6.3.9600.21764

18-Dec-23

21:56

257,536

netfxconfig.dll

6.3.9600.21764

18-Dec-23

22:30

34,816

ConfigureIEOptionalComponentsAI.dll

6.3.9600.21764

18-Dec-23

21:55

84,992

IEFileInstallAI.dll

6.3.9600.21764

18-Dec-23

21:50

68,096

servicemodelregai.dll

6.3.9600.21764

18-Dec-23

21:55

115,200

SetIEInstalledDateAI.dll

6.3.9600.21764

18-Dec-23

21:56

51,712

ceipfwdai.dll

6.3.9600.21764

18-Dec-23

21:51

228,352

bcdeditai.dll

6.3.9600.21764

18-Dec-23

21:58

287,232

appxreg.dll

6.3.9600.21764

18-Dec-23

22:22

14,848

RegisterIEPKeysAI.dll

6.3.9600.21764

18-Dec-23

21:53

19,968

cmipnpinstall.dll

6.3.9600.21764

18-Dec-23

22:28

248,832

appserverai.dll

6.3.9600.21764

18-Dec-23

22:26

146,432

RDWebAI.dll

6.3.9600.21764

18-Dec-23

22:09

140,800

tssdisai.dll

6.3.9600.21764

18-Dec-23

22:08

156,160

VmHostAI.dll

6.3.9600.21764

18-Dec-23

22:13

123,392

securebootai.dll

6.3.9600.21764

18-Dec-23

21:58

74,752

winsockai.dll

6.3.9600.21764

18-Dec-23

21:55

69,632

ws2_helper.dll

6.3.9600.21764

18-Dec-23

21:57

62,976

cleanupai.dll

6.3.9600.21764

18-Dec-23

21:56

33,792

wdscore.dll

6.3.9600.21764

18-Dec-23

21:57

276,480

CntrtextInstaller.dll

6.3.9600.21764

18-Dec-23

22:00

153,088

drvstore.dll

6.3.9600.21764

18-Dec-23

22:00

744,960

dpx.dll

6.3.9600.21764

18-Dec-23

21:50

345,088

msdelta.dll

6.3.9600.21764

18-Dec-23

21:58

499,712

mspatcha.dll

6.3.9600.21764

18-Dec-23

22:01

46,080

cmiv2.dll

6.3.9600.21764

18-Dec-23

22:30

3,300,352

cmiaisupport.dll

6.3.9600.21764

18-Dec-23

21:53

3,154,944

cmitrust.dll

6.3.9600.21764

18-Dec-23

21:57

418,304

WcmTypes.xsd

Not versioned

18-Dec-23

19:40

1,047

CbsMsg.dll

6.3.9600.21764

18-Dec-23

22:01

42,496

CbsCore.dll

6.3.9600.21764

18-Dec-23

21:51

1,606,656

TiWorker.exe

6.3.9600.21764

18-Dec-23

21:57

193,024

TiFileFetcher.exe

6.3.9600.21764

18-Dec-23

21:51

427,520

DrUpdate.dll

6.3.9600.21764

18-Dec-23

21:59

246,784

wrpint.dll

6.3.9600.21764

18-Dec-23

21:51

66,048

wcp.dll

6.3.9600.21764

18-Dec-23

21:59

2,855,424

cmiadapter.dll

6.3.9600.21764

18-Dec-23

21:55

139,264

smiengine.dll

6.3.9600.21764

18-Dec-23

21:44

922,624

smipi.dll

6.3.9600.21764

18-Dec-23

21:57

65,536

poqexec.exe

6.3.9600.21764

18-Dec-23

22:43

146,432

amd64_installed

Not versioned

18-Dec-23

19:37

9

bfsvc.dll

6.3.9600.21764

18-Dec-23

21:52

77,312

timezoneai.dll

6.3.9600.21764

18-Dec-23

21:59

101,888

GlobalInstallOrder.xml

Not versioned

18-Dec-23

19:41

1,249,919

luainstall.dll

6.3.9600.21764

18-Dec-23

21:57

53,248

fveupdateai.dll

6.3.9600.21764

18-Dec-23

21:55

61,952

ExtendedSecurityUpdatesAI.dll

6.3.9600.21764

18-Dec-23

22:26

196,608

mofinstall.dll

6.3.9600.21764

18-Dec-23

21:57

67,072

esscli.dll

6.3.9600.21764

18-Dec-23

21:56

388,608

mofd.dll

6.3.9600.21764

18-Dec-23

21:55

248,320

repdrvfs.dll

6.3.9600.21764

18-Dec-23

21:55

350,720

fastprox.dll

6.3.9600.21764

18-Dec-23

21:55

854,016

wbemcomn.dll

6.3.9600.21764

18-Dec-23

21:57

453,632

wbemcore.dll

6.3.9600.21764

18-Dec-23

21:54

1,148,928

wmiutils.dll

6.3.9600.21764

18-Dec-23

21:57

111,104

wbemprox.dll

6.3.9600.21764

18-Dec-23

21:56

35,840

wmicmiplugin.dll

6.3.9600.21764

18-Dec-23

21:50

508,928

sppinst.dll

6.3.9600.21764

18-Dec-23

21:50

769,024

cmifw.dll

6.3.9600.21764

18-Dec-23

21:54

97,280

FirewallOfflineAPI.dll

6.3.9600.21764

18-Dec-23

22:00

166,912

NetSetupAI.dll

6.3.9600.21764

18-Dec-23

21:58

65,024

NetSetupApi.dll

6.3.9600.21764

18-Dec-23

21:59

184,832

httpai.dll

6.3.9600.21764

18-Dec-23

21:46

55,296

peerdistai.dll

6.3.9600.21764

18-Dec-23

21:46

65,024

PrintAdvancedInstaller.dll

6.3.9600.21764

18-Dec-23

21:56

99,328

msdtcadvancedinstaller.dll

6.3.9600.21764

18-Dec-23

21:46

215,040

netfxconfig.dll

6.3.9600.21764

18-Dec-23

22:09

40,448

ConfigureIEOptionalComponentsAI.dll

6.3.9600.21764

18-Dec-23

21:46

76,800

IEFileInstallAI.dll

6.3.9600.21764

18-Dec-23

21:43

66,560

servicemodelregai.dll

6.3.9600.21764

18-Dec-23

21:46

96,768

SetIEInstalledDateAI.dll

6.3.9600.21764

18-Dec-23

21:46

49,152

ceipfwdai.dll

6.3.9600.21764

18-Dec-23

21:44

197,632

bcdeditai.dll

6.3.9600.21764

18-Dec-23

21:48

271,360

appxreg.dll

6.3.9600.21764

18-Dec-23

22:03

19,968

RegisterIEPKeysAI.dll

6.3.9600.21764

18-Dec-23

21:45

23,040

cmipnpinstall.dll

6.3.9600.21764

18-Dec-23

22:07

195,072

securebootai.dll

6.3.9600.21764

18-Dec-23

21:48

68,096

winsockai.dll

6.3.9600.21764

18-Dec-23

21:46

71,680

ws2_helper.dll

6.3.9600.21764

18-Dec-23

21:47

50,176

cleanupai.dll

6.3.9600.21764

18-Dec-23

21:46

37,376

wdscore.dll

6.3.9600.21764

18-Dec-23

21:47

208,384

CntrtextInstaller.dll

6.3.9600.21764

18-Dec-23

21:49

128,000

drvstore.dll

6.3.9600.21764

18-Dec-23

21:49

610,304

dpx.dll

6.3.9600.21764

18-Dec-23

21:43

265,216

msdelta.dll

6.3.9600.21764

18-Dec-23

21:47

398,336

mspatcha.dll

6.3.9600.21764

18-Dec-23

21:49

36,864

cmiv2.dll

6.3.9600.21764

18-Dec-23

22:08

2,257,408

cmiaisupport.dll

6.3.9600.21764

18-Dec-23

21:45

2,162,688

cmitrust.dll

6.3.9600.21764

18-Dec-23

21:47

286,720

WcmTypes.xsd

Not versioned

18-Dec-23

19:39

1,047

CbsMsg.dll

6.3.9600.21764

18-Dec-23

21:49

41,984

CbsCore.dll

6.3.9600.21764

18-Dec-23

21:43

1,379,840

TiWorker.exe

6.3.9600.21764

18-Dec-23

21:46

190,464

TiFileFetcher.exe

6.3.9600.21764

18-Dec-23

21:44

355,328

DrUpdate.dll

6.3.9600.21764

18-Dec-23

21:48

202,240

wrpint.dll

6.3.9600.21764

18-Dec-23

21:43

56,320

wcp.dll

6.3.9600.21764

18-Dec-23

21:49

2,408,960

cmiadapter.dll

6.3.9600.21764

18-Dec-23

21:45

121,856

smiengine.dll

6.3.9600.21764

18-Dec-23

21:39

750,080

smipi.dll

6.3.9600.21764

18-Dec-23

21:46

59,904

poqexec.exe

6.3.9600.21764

18-Dec-23

22:20

129,536

x86_installed

Not versioned

18-Dec-23

19:36

9

bfsvc.dll

6.3.9600.21764

18-Dec-23

21:44

74,752

timezoneai.dll

6.3.9600.21764

18-Dec-23

21:48

86,528

GlobalInstallOrder.xml

Not versioned

18-Dec-23

19:39

1,249,919

luainstall.dll

6.3.9600.21764

18-Dec-23

21:47

43,008

fveupdateai.dll

6.3.9600.21764

18-Dec-23

21:46

57,344

ExtendedSecurityUpdatesAI.dll

6.3.9600.21764

18-Dec-23

22:06

160,256

mofinstall.dll

6.3.9600.21764

18-Dec-23

21:47

64,000

esscli.dll

6.3.9600.21764

18-Dec-23

21:46

293,376

mofd.dll

6.3.9600.21764

18-Dec-23

21:46

204,800

repdrvfs.dll

6.3.9600.21764

18-Dec-23

21:46

277,504

fastprox.dll

6.3.9600.21764

18-Dec-23

21:46

670,208

wbemcomn.dll

6.3.9600.21764

18-Dec-23

21:46

386,048

wbemcore.dll

6.3.9600.21764

18-Dec-23

21:45

925,696

wmiutils.dll

6.3.9600.21764

18-Dec-23

21:47

90,624

wbemprox.dll

6.3.9600.21764

18-Dec-23

21:46

29,696

wmicmiplugin.dll

6.3.9600.21764

18-Dec-23

21:43

392,704

sppinst.dll

6.3.9600.21764

18-Dec-23

21:43

646,656

cmifw.dll

6.3.9600.21764

18-Dec-23

21:45

80,896

FirewallOfflineAPI.dll

6.3.9600.21764

18-Dec-23

21:48

140,800

NetSetupAI.dll

6.3.9600.21764

18-Dec-23

21:47

55,296

NetSetupApi.dll

6.3.9600.21764

18-Dec-23

21:48

124,928

References

For information on SSUs, see the following articles:

Learn about the standard terminology that is used to describe Microsoft software updates.

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