Applies ToWindows Server 2012 R2 ESU

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.

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 Not installing the latest SSU before applying Windows updates might result in the Windows update not being offered until the latest SSU is installed.

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.

Prerequisites

There are no prerequisites to apply this update.

Restart information

You do not 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 KB5050115.

File Information

The English (United States) version of this software update installs files that have the following attributes. This update might contain files for additional languages.

File name

File version

Date

Time

File size

httpai.dll

6.3.9600.22414

13-Jan-25

22:23

57,856

peerdistai.dll

6.3.9600.22414

13-Jan-25

22:23

72,192

PrintAdvancedInstaller.dll

6.3.9600.22414

13-Jan-25

22:37

102,400

msdtcadvancedinstaller.dll

6.3.9600.22414

13-Jan-25

22:23

257,536

netfxconfig.dll

6.3.9600.22414

13-Jan-25

22:53

34,816

ConfigureIEOptionalComponentsAI.dll

6.3.9600.22414

13-Jan-25

22:23

84,992

IEFileInstallAI.dll

6.3.9600.22414

13-Jan-25

22:19

68,096

servicemodelregai.dll

6.3.9600.22414

13-Jan-25

22:22

115,200

SetIEInstalledDateAI.dll

6.3.9600.22414

13-Jan-25

22:23

51,712

ceipfwdai.dll

6.3.9600.22414

13-Jan-25

22:20

228,352

bcdeditai.dll

6.3.9600.22414

13-Jan-25

22:25

287,232

appxreg.dll

6.3.9600.22414

13-Jan-25

22:46

14,848

RegisterIEPKeysAI.dll

6.3.9600.22414

13-Jan-25

22:21

19,968

cmipnpinstall.dll

6.3.9600.22414

13-Jan-25

22:51

248,832

appserverai.dll

6.3.9600.22414

13-Jan-25

22:50

146,432

RDWebAI.dll

6.3.9600.22414

13-Jan-25

22:34

140,800

tssdisai.dll

6.3.9600.22414

13-Jan-25

22:32

156,160

VmHostAI.dll

6.3.9600.22414

13-Jan-25

22:37

123,392

securebootai.dll

6.3.9600.22414

13-Jan-25

22:24

166,912

winsockai.dll

6.3.9600.22414

13-Jan-25

22:23

69,632

ws2_helper.dll

6.3.9600.22414

13-Jan-25

22:24

62,976

cleanupai.dll

6.3.9600.22414

13-Jan-25

22:23

33,792

wdscore.dll

6.3.9600.22414

13-Jan-25

22:24

276,480

CntrtextInstaller.dll

6.3.9600.22414

13-Jan-25

22:26

153,088

drvstore.dll

6.3.9600.22414

13-Jan-25

22:26

744,960

dpx.dll

6.3.9600.22414

13-Jan-25

22:19

345,088

msdelta.dll

6.3.9600.22414

13-Jan-25

22:24

499,712

mspatcha.dll

6.3.9600.22414

13-Jan-25

22:27

46,080

cmiv2.dll

6.3.9600.22414

13-Jan-25

22:53

3,300,352

cmiaisupport.dll

6.3.9600.22414

13-Jan-25

22:21

3,154,944

cmitrust.dll

6.3.9600.22414

13-Jan-25

22:24

418,304

WcmTypes.xsd

Not versioned

1-Dec-24

17:19

1,047

CbsMsg.dll

6.3.9600.22414

13-Jan-25

22:27

42,496

CbsCore.dll

6.3.9600.22414

13-Jan-25

22:19

1,608,704

TiWorker.exe

6.3.9600.22414

13-Jan-25

22:24

193,024

TiFileFetcher.exe

6.3.9600.22414

13-Jan-25

22:20

427,520

DrUpdate.dll

6.3.9600.22414

13-Jan-25

22:26

246,784

wrpint.dll

6.3.9600.22414

13-Jan-25

22:19

66,048

wcp.dll

6.3.9600.22414

13-Jan-25

22:26

2,855,424

cmiadapter.dll

6.3.9600.22414

13-Jan-25

22:22

139,264

smiengine.dll

6.3.9600.22414

13-Jan-25

22:15

922,624

smipi.dll

6.3.9600.22414

13-Jan-25

22:23

65,536

poqexec.exe

6.3.9600.22414

13-Jan-25

23:05

146,432

amd64_installed

Not versioned

1-Dec-24

17:17

9

bfsvc.dll

6.3.9600.22414

13-Jan-25

22:21

85,504

timezoneai.dll

6.3.9600.22414

13-Jan-25

22:25

101,888

GlobalInstallOrder.xml

Not versioned

1-Dec-24

17:19

1,249,919

luainstall.dll

6.3.9600.22414

13-Jan-25

22:24

53,248

fveupdateai.dll

6.3.9600.22414

13-Jan-25

22:23

61,952

ExtendedSecurityUpdatesAI.dll

6.3.9600.22414

13-Jan-25

22:50

215,040

mofinstall.dll

6.3.9600.22414

13-Jan-25

22:24

67,072

esscli.dll

6.3.9600.22414

13-Jan-25

22:23

388,608

mofd.dll

6.3.9600.22414

13-Jan-25

22:22

248,320

repdrvfs.dll

6.3.9600.22414

13-Jan-25

22:23

350,720

fastprox.dll

6.3.9600.22414

13-Jan-25

22:22

854,016

wbemcomn.dll

6.3.9600.22414

13-Jan-25

22:24

453,632

wbemcore.dll

6.3.9600.22414

13-Jan-25

22:22

1,148,928

wmiutils.dll

6.3.9600.22414

13-Jan-25

22:24

111,104

wbemprox.dll

6.3.9600.22414

13-Jan-25

22:23

35,840

wmicmiplugin.dll

6.3.9600.22414

13-Jan-25

22:19

509,952

sppinst.dll

6.3.9600.22414

13-Jan-25

22:19

769,024

cmifw.dll

6.3.9600.22414

13-Jan-25

22:22

97,280

FirewallOfflineAPI.dll

6.3.9600.22414

13-Jan-25

22:26

166,912

NetSetupAI.dll

6.3.9600.22414

13-Jan-25

22:25

65,024

NetSetupApi.dll

6.3.9600.22414

13-Jan-25

22:26

184,832

httpai.dll

6.3.9600.22414

13-Jan-25

22:21

55,296

peerdistai.dll

6.3.9600.22414

13-Jan-25

22:21

65,024

PrintAdvancedInstaller.dll

6.3.9600.22414

13-Jan-25

22:29

99,328

msdtcadvancedinstaller.dll

6.3.9600.22414

13-Jan-25

22:20

215,040

netfxconfig.dll

6.3.9600.22414

13-Jan-25

22:41

40,448

ConfigureIEOptionalComponentsAI.dll

6.3.9600.22414

13-Jan-25

22:20

76,800

IEFileInstallAI.dll

6.3.9600.22414

13-Jan-25

22:18

66,560

servicemodelregai.dll

6.3.9600.22414

13-Jan-25

22:20

96,768

SetIEInstalledDateAI.dll

6.3.9600.22414

13-Jan-25

22:21

49,152

ceipfwdai.dll

6.3.9600.22414

13-Jan-25

22:18

197,632

bcdeditai.dll

6.3.9600.22414

13-Jan-25

22:22

271,360

appxreg.dll

6.3.9600.22414

13-Jan-25

22:36

19,968

RegisterIEPKeysAI.dll

6.3.9600.22414

13-Jan-25

22:19

23,040

cmipnpinstall.dll

6.3.9600.22414

13-Jan-25

22:39

195,072

securebootai.dll

6.3.9600.22414

13-Jan-25

22:21

150,016

winsockai.dll

6.3.9600.22414

13-Jan-25

22:20

71,680

ws2_helper.dll

6.3.9600.22414

13-Jan-25

22:21

50,176

cleanupai.dll

6.3.9600.22414

13-Jan-25

22:21

37,376

wdscore.dll

6.3.9600.22414

13-Jan-25

22:21

208,384

CntrtextInstaller.dll

6.3.9600.22414

13-Jan-25

22:22

128,000

drvstore.dll

6.3.9600.22414

13-Jan-25

22:22

610,304

dpx.dll

6.3.9600.22414

13-Jan-25

22:18

265,216

msdelta.dll

6.3.9600.22414

13-Jan-25

22:21

398,336

mspatcha.dll

6.3.9600.22414

13-Jan-25

22:23

36,864

cmiv2.dll

6.3.9600.22414

13-Jan-25

22:41

2,257,408

cmiaisupport.dll

6.3.9600.22414

13-Jan-25

22:19

2,162,688

cmitrust.dll

6.3.9600.22414

13-Jan-25

22:21

286,720

WcmTypes.xsd

Not versioned

13-Jan-25

19:40

1,047

CbsMsg.dll

6.3.9600.22414

13-Jan-25

22:23

41,984

CbsCore.dll

6.3.9600.22414

13-Jan-25

22:18

1,381,376

TiWorker.exe

6.3.9600.22414

13-Jan-25

22:21

190,464

TiFileFetcher.exe

6.3.9600.22414

13-Jan-25

22:18

355,328

DrUpdate.dll

6.3.9600.22414

13-Jan-25

22:22

202,240

wrpint.dll

6.3.9600.22414

13-Jan-25

22:18

56,320

wcp.dll

6.3.9600.22414

13-Jan-25

22:23

2,408,960

cmiadapter.dll

6.3.9600.22414

13-Jan-25

22:20

121,856

smiengine.dll

6.3.9600.22414

13-Jan-25

22:15

750,080

smipi.dll

6.3.9600.22414

13-Jan-25

22:21

59,904

poqexec.exe

6.3.9600.22414

13-Jan-25

22:50

129,536

x86_installed

Not versioned

13-Jan-25

19:38

9

bfsvc.dll

6.3.9600.22414

13-Jan-25

22:19

81,920

timezoneai.dll

6.3.9600.22414

13-Jan-25

22:22

86,528

GlobalInstallOrder.xml

Not versioned

13-Jan-25

19:40

1,249,919

luainstall.dll

6.3.9600.22414

13-Jan-25

22:21

43,008

fveupdateai.dll

6.3.9600.22414

13-Jan-25

22:20

57,344

ExtendedSecurityUpdatesAI.dll

6.3.9600.22414

13-Jan-25

22:38

177,664

mofinstall.dll

6.3.9600.22414

13-Jan-25

22:21

64,000

esscli.dll

6.3.9600.22414

13-Jan-25

22:20

293,376

mofd.dll

6.3.9600.22414

13-Jan-25

22:20

204,800

repdrvfs.dll

6.3.9600.22414

13-Jan-25

22:20

277,504

fastprox.dll

6.3.9600.22414

13-Jan-25

22:20

670,208

wbemcomn.dll

6.3.9600.22414

13-Jan-25

22:21

386,048

wbemcore.dll

6.3.9600.22414

13-Jan-25

22:20

925,696

wmiutils.dll

6.3.9600.22414

13-Jan-25

22:21

90,624

wbemprox.dll

6.3.9600.22414

13-Jan-25

22:21

29,696

wmicmiplugin.dll

6.3.9600.22414

13-Jan-25

22:18

393,216

sppinst.dll

6.3.9600.22414

13-Jan-25

22:18

646,656

cmifw.dll

6.3.9600.22414

13-Jan-25

22:20

80,896

FirewallOfflineAPI.dll

6.3.9600.22414

13-Jan-25

22:22

140,800

NetSetupAI.dll

6.3.9600.22414

13-Jan-25

22:21

55,296

NetSetupApi.dll

6.3.9600.22414

13-Jan-25

22:22

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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