• 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. For more information, see 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. For more information, see 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

To install this update, use one of the following release channels.

Available

Next step

Yes

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

Available

Next step

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.

Available

Next step

Yes

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

  • Product: Windows Server 2012 R2

  • Classification: Security Updates

For more information about configuring in WSUS, see Windows Server Update Services (WSUS).

For more information about configuring in Configuration Manager see Synchronize software updates.

Prerequisites

Restart information

Removal information

Update replacement information

There are no prerequisites to apply this update.

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

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

This update replaces the previously released update KB5040569.

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 Server 2012 R2

File name

File version

Date

Time

File size

httpai.dll

6.3.9600.22131

31-Jul-24

21:24

57,856

peerdistai.dll

6.3.9600.22131

31-Jul-24

21:24

72,192

PrintAdvancedInstaller.dll

6.3.9600.22131

31-Jul-24

21:41

102,400

msdtcadvancedinstaller.dll

6.3.9600.22131

31-Jul-24

21:23

257,536

netfxconfig.dll

6.3.9600.22131

31-Jul-24

21:57

34,816

ConfigureIEOptionalComponentsAI.dll

6.3.9600.22131

31-Jul-24

21:23

84,992

IEFileInstallAI.dll

6.3.9600.22131

31-Jul-24

21:18

68,096

servicemodelregai.dll

6.3.9600.22131

31-Jul-24

21:23

115,200

SetIEInstalledDateAI.dll

6.3.9600.22131

31-Jul-24

21:24

51,712

ceipfwdai.dll

6.3.9600.22131

31-Jul-24

21:20

228,352

bcdeditai.dll

6.3.9600.22131

31-Jul-24

21:26

287,232

appxreg.dll

6.3.9600.22131

31-Jul-24

21:50

14,848

RegisterIEPKeysAI.dll

6.3.9600.22131

31-Jul-24

21:21

19,968

cmipnpinstall.dll

6.3.9600.22131

31-Jul-24

21:55

248,832

appserverai.dll

6.3.9600.22131

31-Jul-24

21:54

146,432

RDWebAI.dll

6.3.9600.22131

31-Jul-24

21:37

140,800

tssdisai.dll

6.3.9600.22131

31-Jul-24

21:35

156,160

VmHostAI.dll

6.3.9600.22131

31-Jul-24

21:41

123,392

securebootai.dll

6.3.9600.22131

31-Jul-24

21:25

163,328

winsockai.dll

6.3.9600.22131

31-Jul-24

21:23

69,632

ws2_helper.dll

6.3.9600.22131

31-Jul-24

21:25

62,976

cleanupai.dll

6.3.9600.22131

31-Jul-24

21:24

33,792

wdscore.dll

6.3.9600.22131

31-Jul-24

21:25

276,480

CntrtextInstaller.dll

6.3.9600.22131

31-Jul-24

21:28

153,088

drvstore.dll

6.3.9600.22131

31-Jul-24

21:28

744,960

dpx.dll

6.3.9600.22131

31-Jul-24

21:18

345,088

msdelta.dll

6.3.9600.22131

31-Jul-24

21:25

499,712

mspatcha.dll

6.3.9600.22131

31-Jul-24

21:28

46,080

cmiv2.dll

6.3.9600.22131

31-Jul-24

21:57

3,300,352

cmiaisupport.dll

6.3.9600.22131

31-Jul-24

21:21

3,154,944

cmitrust.dll

6.3.9600.22131

31-Jul-24

21:24

418,304

WcmTypes.xsd

Not versioned

24-Jul-24

20:49

1,047

CbsMsg.dll

6.3.9600.22131

31-Jul-24

21:29

42,496

CbsCore.dll

6.3.9600.22131

31-Jul-24

21:18

1,609,728

TiWorker.exe

6.3.9600.22131

31-Jul-24

21:24

193,024

TiFileFetcher.exe

6.3.9600.22131

31-Jul-24

21:19

427,520

DrUpdate.dll

6.3.9600.22131

31-Jul-24

21:27

246,784

wrpint.dll

6.3.9600.22131

31-Jul-24

21:18

66,048

wcp.dll

6.3.9600.22131

31-Jul-24

21:26

2,855,424

cmiadapter.dll

6.3.9600.22131

31-Jul-24

21:23

139,264

smiengine.dll

6.3.9600.22131

31-Jul-24

21:13

922,624

smipi.dll

6.3.9600.22131

31-Jul-24

21:24

65,536

poqexec.exe

6.3.9600.22131

31-Jul-24

22:10

146,432

amd64_installed

Not versioned

24-Jul-24

20:47

9

bfsvc.dll

6.3.9600.22131

31-Jul-24

21:20

86,016

timezoneai.dll

6.3.9600.22131

31-Jul-24

21:26

101,888

GlobalInstallOrder.xml

Not versioned

24-Jul-24

20:50

1,249,919

luainstall.dll

6.3.9600.22131

31-Jul-24

21:25

53,248

fveupdateai.dll

6.3.9600.22131

31-Jul-24

21:23

61,952

ExtendedSecurityUpdatesAI.dll

6.3.9600.22131

31-Jul-24

21:54

214,528

mofinstall.dll

6.3.9600.22131

31-Jul-24

21:25

67,072

esscli.dll

6.3.9600.22131

31-Jul-24

21:24

388,608

mofd.dll

6.3.9600.22131

31-Jul-24

21:23

248,320

repdrvfs.dll

6.3.9600.22131

31-Jul-24

21:23

350,720

fastprox.dll

6.3.9600.22131

31-Jul-24

21:23

854,016

wbemcomn.dll

6.3.9600.22131

31-Jul-24

21:24

453,632

wbemcore.dll

6.3.9600.22131

31-Jul-24

21:22

1,148,928

wmiutils.dll

6.3.9600.22131

31-Jul-24

21:24

111,104

wbemprox.dll

6.3.9600.22131

31-Jul-24

21:24

35,840

wmicmiplugin.dll

6.3.9600.22131

31-Jul-24

21:18

508,928

sppinst.dll

6.3.9600.22131

31-Jul-24

21:18

769,024

cmifw.dll

6.3.9600.22131

31-Jul-24

21:22

97,280

FirewallOfflineAPI.dll

6.3.9600.22131

31-Jul-24

21:27

166,912

NetSetupAI.dll

6.3.9600.22131

31-Jul-24

21:26

65,024

NetSetupApi.dll

6.3.9600.22131

31-Jul-24

21:27

184,832

httpai.dll

6.3.9600.22131

31-Jul-24

21:17

55,296

peerdistai.dll

6.3.9600.22131

31-Jul-24

21:17

65,024

PrintAdvancedInstaller.dll

6.3.9600.22131

31-Jul-24

21:27

99,328

msdtcadvancedinstaller.dll

6.3.9600.22131

31-Jul-24

21:16

215,040

netfxconfig.dll

6.3.9600.22131

31-Jul-24

21:39

40,448

ConfigureIEOptionalComponentsAI.dll

6.3.9600.22131

31-Jul-24

21:16

76,800

IEFileInstallAI.dll

6.3.9600.22131

31-Jul-24

21:13

66,560

servicemodelregai.dll

6.3.9600.22131

31-Jul-24

21:16

96,768

SetIEInstalledDateAI.dll

6.3.9600.22131

31-Jul-24

21:17

49,152

ceipfwdai.dll

6.3.9600.22131

31-Jul-24

21:14

197,632

bcdeditai.dll

6.3.9600.22131

31-Jul-24

21:18

271,360

appxreg.dll

6.3.9600.22131

31-Jul-24

21:34

19,968

RegisterIEPKeysAI.dll

6.3.9600.22131

31-Jul-24

21:15

23,040

cmipnpinstall.dll

6.3.9600.22131

31-Jul-24

21:38

195,072

securebootai.dll

6.3.9600.22131

31-Jul-24

21:18

147,456

winsockai.dll

6.3.9600.22131

31-Jul-24

21:16

71,680

ws2_helper.dll

6.3.9600.22131

31-Jul-24

21:17

50,176

cleanupai.dll

6.3.9600.22131

31-Jul-24

21:17

37,376

wdscore.dll

6.3.9600.22131

31-Jul-24

21:17

208,384

CntrtextInstaller.dll

6.3.9600.22131

31-Jul-24

21:19

128,000

drvstore.dll

6.3.9600.22131

31-Jul-24

21:19

610,304

dpx.dll

6.3.9600.22131

31-Jul-24

21:13

265,216

msdelta.dll

6.3.9600.22131

31-Jul-24

21:18

398,336

mspatcha.dll

6.3.9600.22131

31-Jul-24

21:19

36,864

cmiv2.dll

6.3.9600.22131

31-Jul-24

21:39

2,257,408

cmiaisupport.dll

6.3.9600.22131

31-Jul-24

21:15

2,162,688

cmitrust.dll

6.3.9600.22131

31-Jul-24

21:17

286,720

WcmTypes.xsd

Not versioned

24-Jul-24

20:50

1,047

CbsMsg.dll

6.3.9600.22131

31-Jul-24

21:19

41,984

CbsCore.dll

6.3.9600.22131

31-Jul-24

21:13

1,381,888

TiWorker.exe

6.3.9600.22131

31-Jul-24

21:17

190,464

TiFileFetcher.exe

6.3.9600.22131

31-Jul-24

21:14

355,328

DrUpdate.dll

6.3.9600.22131

31-Jul-24

21:19

202,240

wrpint.dll

6.3.9600.22131

31-Jul-24

21:13

56,320

wcp.dll

6.3.9600.22131

31-Jul-24

21:19

2,409,472

cmiadapter.dll

6.3.9600.22131

31-Jul-24

21:16

121,856

smiengine.dll

6.3.9600.22131

31-Jul-24

21:10

750,080

smipi.dll

6.3.9600.22131

31-Jul-24

21:17

59,904

poqexec.exe

6.3.9600.22131

31-Jul-24

21:49

129,536

x86_installed

Not versioned

24-Jul-24

20:47

9

bfsvc.dll

6.3.9600.22131

31-Jul-24

21:14

82,432

timezoneai.dll

6.3.9600.22131

31-Jul-24

21:18

86,528

luainstall.dll

6.3.9600.22131

31-Jul-24

21:17

43,008

fveupdateai.dll

6.3.9600.22131

31-Jul-24

21:16

57,344

ExtendedSecurityUpdatesAI.dll

6.3.9600.22131

31-Jul-24

21:37

177,152

mofinstall.dll

6.3.9600.22131

31-Jul-24

21:17

64,000

esscli.dll

6.3.9600.22131

31-Jul-24

21:16

293,376

mofd.dll

6.3.9600.22131

31-Jul-24

21:16

204,800

repdrvfs.dll

6.3.9600.22131

31-Jul-24

21:16

277,504

fastprox.dll

6.3.9600.22131

31-Jul-24

21:16

670,208

wbemcomn.dll

6.3.9600.22131

31-Jul-24

21:17

386,048

wbemcore.dll

6.3.9600.22131

31-Jul-24

21:15

925,696

wmiutils.dll

6.3.9600.22131

31-Jul-24

21:17

90,624

wbemprox.dll

6.3.9600.22131

31-Jul-24

21:17

29,696

wmicmiplugin.dll

6.3.9600.22131

31-Jul-24

21:13

392,704

sppinst.dll

6.3.9600.22131

31-Jul-24

21:13

646,656

cmifw.dll

6.3.9600.22131

31-Jul-24

21:15

80,896

FirewallOfflineAPI.dll

6.3.9600.22131

31-Jul-24

21:19

140,800

NetSetupAI.dll

6.3.9600.22131

31-Jul-24

21:18

55,296

NetSetupApi.dll

6.3.9600.22131

31-Jul-24

21:19

124,928

References

Servicing stack updates

Servicing Stack Updates (SSU): Frequently Asked Questions

ADV990001 | Latest Servicing Stack Updates

Description of the standard terminology that is used to describe Microsoft software updates

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