Applies To
Windows Server 2012 ESU

Windows Secure Boot certificate expiration 

Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and preparation steps, see Windows Secure Boot certificate expiration and CA updates.

Support for Windows Server 2012 will end in October 2026

Windows Server 2012 reached the 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 information about the procedure to continue receiving security updates, see KB5031043. 

We recommend that you upgrade to a later version of Windows Server. For more information, see Overview of Windows Server upgrades.

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 KB5065768.

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

securebootai.dll

6.2.9200.25716

8-Sep-25

21:42

175,104

winsockai.dll

6.2.9200.25716

8-Sep-25

21:42

60,928

ws2_helper.dll

6.2.9200.25716

8-Sep-25

21:42

59,904

httpai.dll

6.2.9200.25716

8-Sep-25

21:41

52,224

peerdistai.dll

6.2.9200.25716

8-Sep-25

21:41

67,584

PrintAdvancedInstaller.dll

6.2.9200.25716

8-Sep-25

21:42

71,168

msdtcadvancedinstaller.dll

6.2.9200.25716

8-Sep-25

21:41

239,616

cleanupai.dll

6.2.9200.25716

8-Sep-25

21:41

32,256

wdscore.dll

6.2.9200.25716

8-Sep-25

21:42

290,304

CntrtextInstaller.dll

6.2.9200.25716

8-Sep-25

21:41

165,376

drvstore.dll

6.2.9200.25716

8-Sep-25

21:41

696,320

dpx.dll

6.2.9200.25716

8-Sep-25

21:41

362,496

msdelta.dll

6.2.9200.25716

8-Sep-25

21:42

414,208

mspatcha.dll

6.2.9200.25716

8-Sep-25

21:42

45,056

PkgMgr.exe

6.2.9200.25716

8-Sep-25

21:42

196,096

cmiv2.dll

6.2.9200.25716

8-Sep-25

21:41

3,305,472

cmitrust.dll

6.2.9200.25716

8-Sep-25

21:41

407,552

WcmTypes.xsd

Not versioned

8-Sep-25

18:54

1,047

CbsMsg.dll

6.2.9200.25716

8-Sep-25

21:41

41,472

CbsCore.dll

6.2.9200.25716

8-Sep-25

21:41

1,166,848

TiWorker.exe

6.2.9200.25716

8-Sep-25

21:42

189,440

TiFileFetcher.exe

6.2.9200.25716

8-Sep-25

21:42

460,800

DrUpdate.dll

6.2.9200.25716

8-Sep-25

21:41

244,224

wrpint.dll

6.2.9200.25716

8-Sep-25

21:42

60,416

wcp.dll

6.2.9200.25716

8-Sep-25

21:42

2,837,504

cmiadapter.dll

6.2.9200.25716

8-Sep-25

21:41

116,736

smiengine.dll

6.2.9200.25716

8-Sep-25

21:42

896,000

smipi.dll

6.2.9200.25716

8-Sep-25

21:42

110,592

poqexec.exe

6.2.9200.25716

8-Sep-25

21:42

148,480

amd64_installed

Not versioned

8-Sep-25

18:51

9

cmipnpinstall.dll

6.2.9200.25716

8-Sep-25

21:41

250,880

bfsvc.dll

6.2.9200.25716

8-Sep-25

21:41

101,376

netfxconfig.dll

6.2.9200.25716

8-Sep-25

21:41

34,304

timezoneai.dll

6.2.9200.25716

8-Sep-25

21:42

75,264

ConfigureIEOptionalComponentsAI.dll

6.2.9200.25716

8-Sep-25

21:41

73,216

IEFileInstallAI.dll

6.2.9200.25716

8-Sep-25

21:41

58,880

GlobalInstallOrder.xml

Not versioned

8-Sep-25

18:54

2,240,509

servicemodelregai.dll

6.2.9200.25716

8-Sep-25

21:42

116,224

SetIEInstalledDateAI.dll

6.2.9200.25716

8-Sep-25

21:42

42,496

ceipfwdai.dll

6.2.9200.25716

8-Sep-25

21:41

212,480

luainstall.dll

6.2.9200.25716

8-Sep-25

21:41

50,688

bcdeditai.dll

6.2.9200.25716

8-Sep-25

21:41

300,032

appxreg.dll

6.2.9200.25716

8-Sep-25

21:41

15,872

fveupdateai.dll

6.2.9200.25716

8-Sep-25

21:41

57,344

RegisterIEPKeysAI.dll

6.2.9200.25716

8-Sep-25

21:42

19,456

ExtendedSecurityUpdatesAI.dll

6.2.9200.25716

8-Sep-25

21:41

199,680

mofinstall.dll

6.2.9200.25716

8-Sep-25

21:42

71,168

esscli.dll

6.2.9200.25716

8-Sep-25

21:42

385,024

mofd.dll

6.2.9200.25716

8-Sep-25

21:42

259,584

repdrvfs.dll

6.2.9200.25716

8-Sep-25

21:42

366,592

fastprox.dll

6.2.9200.25716

8-Sep-25

21:42

817,152

wbemcomn.dll

6.2.9200.25716

8-Sep-25

21:42

462,336

wbemcore.dll

6.2.9200.25716

8-Sep-25

21:42

1,207,296

wmiutils.dll

6.2.9200.25716

8-Sep-25

21:42

115,712

wbemprox.dll

6.2.9200.25716

8-Sep-25

21:42

35,840

wmicmiplugin.dll

6.2.9200.25716

8-Sep-25

21:42

556,544

sppinst.dll

6.2.9200.25716

8-Sep-25

21:42

641,536

cmifw.dll

6.2.9200.25716

8-Sep-25

21:41

89,088

FirewallOfflineAPI.dll

6.2.9200.25716

8-Sep-25

21:41

211,968

appserverai.dll

6.2.9200.25716

8-Sep-25

21:41

135,680

RDWebAI.dll

6.2.9200.25716

8-Sep-25

21:42

126,976

tssdisai.dll

6.2.9200.25716

8-Sep-25

21:42

145,408

VmHostAI.dll

6.2.9200.25716

8-Sep-25

21:42

123,392

securebootai.dll

6.2.9200.25716

8-Sep-25

21:22

158,208

winsockai.dll

6.2.9200.25716

8-Sep-25

21:22

64,512

ws2_helper.dll

6.2.9200.25716

8-Sep-25

21:22

48,128

httpai.dll

6.2.9200.25716

8-Sep-25

21:22

54,272

peerdistai.dll

6.2.9200.25716

8-Sep-25

21:22

66,048

PrintAdvancedInstaller.dll

6.2.9200.25716

8-Sep-25

21:22

72,704

msdtcadvancedinstaller.dll

6.2.9200.25716

8-Sep-25

21:22

200,704

cleanupai.dll

6.2.9200.25716

8-Sep-25

21:22

36,864

wdscore.dll

6.2.9200.25716

8-Sep-25

21:22

223,744

CntrtextInstaller.dll

6.2.9200.25716

8-Sep-25

21:22

139,776

drvstore.dll

6.2.9200.25716

8-Sep-25

21:22

548,864

dpx.dll

6.2.9200.25716

8-Sep-25

21:22

253,952

msdelta.dll

6.2.9200.25716

8-Sep-25

21:22

310,784

mspatcha.dll

6.2.9200.25716

8-Sep-25

21:22

38,912

PkgMgr.exe

6.2.9200.25716

8-Sep-25

21:22

194,048

cmiv2.dll

6.2.9200.25716

8-Sep-25

21:22

2,165,248

cmitrust.dll

6.2.9200.25716

8-Sep-25

21:22

289,792

WcmTypes.xsd

Not versioned

8-Sep-25

18:56

1,047

CbsMsg.dll

6.2.9200.25716

8-Sep-25

21:22

41,472

CbsCore.dll

6.2.9200.25716

8-Sep-25

21:22

1,010,176

TiWorker.exe

6.2.9200.25716

8-Sep-25

21:22

186,880

TiFileFetcher.exe

6.2.9200.25716

8-Sep-25

21:22

380,928

DrUpdate.dll

6.2.9200.25716

8-Sep-25

21:22

193,024

wrpint.dll

6.2.9200.25716

8-Sep-25

21:22

58,880

wcp.dll

6.2.9200.25716

8-Sep-25

21:22

2,189,824

cmiadapter.dll

6.2.9200.25716

8-Sep-25

21:22

104,960

smiengine.dll

6.2.9200.25716

8-Sep-25

21:22

700,928

smipi.dll

6.2.9200.25716

8-Sep-25

21:22

102,400

poqexec.exe

6.2.9200.25716

8-Sep-25

21:22

132,608

x86_installed

Not versioned

8-Sep-25

18:53

9

cmipnpinstall.dll

6.2.9200.25716

8-Sep-25

21:22

191,488

bfsvc.dll

6.2.9200.25716

8-Sep-25

21:22

99,840

netfxconfig.dll

6.2.9200.25716

8-Sep-25

21:22

40,448

timezoneai.dll

6.2.9200.25716

8-Sep-25

21:22

67,584

ConfigureIEOptionalComponentsAI.dll

6.2.9200.25716

8-Sep-25

21:22

69,632

IEFileInstallAI.dll

6.2.9200.25716

8-Sep-25

21:22

59,904

GlobalInstallOrder.xml

Not versioned

8-Sep-25

18:56

2,240,509

servicemodelregai.dll

6.2.9200.25716

8-Sep-25

21:22

96,768

SetIEInstalledDateAI.dll

6.2.9200.25716

8-Sep-25

21:22

41,984

ceipfwdai.dll

6.2.9200.25716

8-Sep-25

21:22

180,736

luainstall.dll

6.2.9200.25716

8-Sep-25

21:22

39,936

bcdeditai.dll

6.2.9200.25716

8-Sep-25

21:22

285,184

appxreg.dll

6.2.9200.25716

8-Sep-25

21:22

22,528

fveupdateai.dll

6.2.9200.25716

8-Sep-25

21:22

56,832

RegisterIEPKeysAI.dll

6.2.9200.25716

8-Sep-25

21:22

24,576

ExtendedSecurityUpdatesAI.dll

6.2.9200.25716

8-Sep-25

21:22

161,792

mofinstall.dll

6.2.9200.25716

8-Sep-25

21:22

61,440

esscli.dll

6.2.9200.25716

8-Sep-25

21:22

283,648

mofd.dll

6.2.9200.25716

8-Sep-25

21:22

196,608

repdrvfs.dll

6.2.9200.25716

8-Sep-25

21:22

275,456

fastprox.dll

6.2.9200.25716

8-Sep-25

21:22

629,760

wbemcomn.dll

6.2.9200.25716

8-Sep-25

21:22

380,928

wbemcore.dll

6.2.9200.25716

8-Sep-25

21:22

924,672

wmiutils.dll

6.2.9200.25716

8-Sep-25

21:22

88,576

wbemprox.dll

6.2.9200.25716

8-Sep-25

21:22

28,160

wmicmiplugin.dll

6.2.9200.25716

8-Sep-25

21:22

396,288

sppinst.dll

6.2.9200.25716

8-Sep-25

21:22

519,168

cmifw.dll

6.2.9200.25716

8-Sep-25

21:22

73,728

FirewallOfflineAPI.dll

6.2.9200.25716

8-Sep-25

21:22

181,760

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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