Applies To
Win 10 Ent LTSB 2016 Windows Server 2016, all editions

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.

End of support information

Support for Windows Server 2016 will end in January 2027

After January 12, 2027, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows Server 2016. We recommend that you upgrade to a later version of Windows Server.

Summary

This servicing stack update (SSU) makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates make 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

Available

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 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 KB5073447.

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

luainstall.dll

10.0.14393.8862

18-Jan-26

21:00

52,696

appxreg.dll

10.0.14393.8862

18-Jan-26

21:00

37,824

appxprovisionpackage.dll

10.0.14393.8862

18-Jan-26

21:00

78,784

EventsInstaller.dll

10.0.14393.8862

18-Jan-26

21:00

178,128

CntrtextInstaller.dll

10.0.14393.8862

18-Jan-26

21:00

141,264

grouptrusteeai.dll

10.0.14393.8862

18-Jan-26

21:00

39,872

sppinst.dll

10.0.14393.8862

18-Jan-26

21:00

38,352

timezoneai.dll

10.0.14393.8862

18-Jan-26

21:00

60,904

httpai.dll

10.0.14393.8862

18-Jan-26

21:00

29,120

cmifw.dll

10.0.14393.8862

18-Jan-26

21:00

91,584

FirewallOfflineAPI.dll

10.0.14393.8862

18-Jan-26

21:00

162,776

NetSetupAI.dll

10.0.14393.8862

18-Jan-26

21:00

105,424

NetSetupApi.dll

10.0.14393.8862

18-Jan-26

21:00

113,088

NetSetupEngine.dll

10.0.14393.8862

18-Jan-26

21:00

607,680

ImplatSetup.dll

10.0.14393.8862

18-Jan-26

21:00

102,336

winsockai.dll

10.0.14393.8862

18-Jan-26

21:00

74,704

ws2_helper.dll

10.0.14393.8862

18-Jan-26

21:00

79,832

wmicmiplugin.dll

10.0.14393.8862

18-Jan-26

21:00

274,368

offlinelsa.dll

10.0.14393.8862

18-Jan-26

21:00

112,088

offlinesam.dll

10.0.14393.8862

18-Jan-26

21:00

235,456

poqexec.exe.mui

10.0.14393.8862

18-Jan-26

21:00

3,072

mofinstall.dll

10.0.14393.8862

18-Jan-26

21:00

73,688

esscli.dll

10.0.14393.8862

18-Jan-26

21:00

300,992

mofd.dll

10.0.14393.8862

18-Jan-26

21:00

208,832

repdrvfs.dll

10.0.14393.8862

18-Jan-26

21:00

283,584

fastprox.dll

10.0.14393.8862

18-Jan-26

21:00

671,192

wbemcomn.dll

10.0.14393.8862

18-Jan-26

21:00

389,584

wbemcore.dll

10.0.14393.8862

18-Jan-26

21:00

985,552

wmiutils.dll

10.0.14393.8862

18-Jan-26

21:00

99,776

wbemprox.dll

10.0.14393.8862

18-Jan-26

21:00

37,840

shtransform.dll

10.0.14393.8862

18-Jan-26

21:00

34,256

bfsvc.dll

10.0.14393.8862

18-Jan-26

21:00

182,224

securebootai.dll

10.0.14393.8862

18-Jan-26

21:00

292,800

fveupdateai.dll

10.0.14393.8862

18-Jan-26

21:00

29,136

cmitrust.dll

10.0.14393.8862

18-Jan-26

21:00

276,952

peerdistai.dll

10.0.14393.8862

18-Jan-26

21:00

33,728

PrintAdvancedInstaller.dll

10.0.14393.8862

18-Jan-26

21:00

94,656

msdtcadvancedinstaller.dll

10.0.14393.8862

18-Jan-26

21:00

56,272

netfxconfig.dll

10.0.14393.8862

18-Jan-26

21:00

28,632

ConfigureIEOptionalComponentsAI.dll

10.0.14393.8862

18-Jan-26

21:00

48,080

IEFileInstallAI.dll

10.0.14393.8862

18-Jan-26

21:00

36,800

servicemodelregai.dll

10.0.14393.8862

18-Jan-26

21:00

74,176

SetIEInstalledDateAI.dll

10.0.14393.8862

18-Jan-26

21:00

24,000

bcdeditai.dll

10.0.14393.8862

18-Jan-26

21:00

273,344

FeatureSettingsOverride.dll

10.0.14393.8862

18-Jan-26

21:00

35,776

SupplementalServicingAI.dll

10.0.14393.8862

18-Jan-26

21:00

17,920

PrimitiveTransformers.dll

10.0.14393.8862

18-Jan-26

21:00

52,672

AriTransformer.dll

10.0.14393.8862

18-Jan-26

21:00

51,152

WpnDataTransformer.dll

10.0.14393.8862

18-Jan-26

21:00

31,720

mqcmiplugin.dll

5.0.1.1

18-Jan-26

21:00

132,048

wdscore.dll

10.0.14393.8862

18-Jan-26

21:00

221,120

drvstore.dll

10.0.14393.8862

18-Jan-26

21:00

751,568

dpx.dll

5.0.1.1

18-Jan-26

21:00

382,936

msdelta.dll

5.0.1.1

18-Jan-26

21:00

408,024

mspatcha.dll

5.0.1.1

18-Jan-26

21:00

46,016

cmiaisupport.dll

10.0.14393.8862

18-Jan-26

21:00

1,915,344

WcmTypes.xsd

Not versioned

18-Jan-26

21:00

1,047

CbsMsg.dll

10.0.14393.8862

18-Jan-26

21:00

50,624

CbsCore.dll

10.0.14393.8862

18-Jan-26

21:00

1,791,424

TiWorker.exe

10.0.14393.8862

18-Jan-26

21:00

197,120

TiFileFetcher.exe

10.0.14393.8862

18-Jan-26

21:00

247,744

drupdate.dll

10.0.14393.8862

18-Jan-26

21:00

287,168

wcp.dll

10.0.14393.8862

18-Jan-26

21:00

2,739,160

cmiadapter.dll

10.0.14393.8862

18-Jan-26

21:00

74,200

smiengine.dll

10.0.14393.8862

18-Jan-26

21:00

748,480

smipi.dll

10.0.14393.8862

18-Jan-26

21:00

33,216

poqexec.exe

10.0.14393.8862

18-Jan-26

21:00

120,320

x86_installed

Not versioned

18-Jan-26

21:00

9

GlobalInstallOrder.xml

Not versioned

18-Jan-26

21:00

1,247,706

wrpint.dll

10.0.14393.8862

18-Jan-26

21:00

68,032

iissetupai.dll

10.0.14393.8862

18-Jan-26

21:00

99,800

cleanupai.dll

10.0.14393.8862

18-Jan-26

21:00

22,976

File name

File version

Date

Time

File size

luainstall.dll

10.0.14393.8862

18-Jan-26

20:14

61,392

appxreg.dll

10.0.14393.8862

18-Jan-26

20:14

43,992

appxprovisionpackage.dll

10.0.14393.8862

18-Jan-26

20:14

88,000

EventsInstaller.dll

10.0.14393.8862

18-Jan-26

20:14

223,720

CntrtextInstaller.dll

10.0.14393.8862

18-Jan-26

20:14

164,304

grouptrusteeai.dll

10.0.14393.8862

18-Jan-26

20:14

45,016

sppinst.dll

10.0.14393.8862

18-Jan-26

20:14

43,456

timezoneai.dll

10.0.14393.8862

18-Jan-26

20:14

71,656

httpai.dll

10.0.14393.8862

18-Jan-26

20:14

32,216

cmifw.dll

10.0.14393.8862

18-Jan-26

20:14

102,888

FirewallOfflineAPI.dll

10.0.14393.8862

18-Jan-26

20:14

185,792

NetSetupAI.dll

10.0.14393.8862

18-Jan-26

20:14

133,584

NetSetupApi.dll

10.0.14393.8862

18-Jan-26

20:14

149,976

NetSetupEngine.dll

10.0.14393.8862

18-Jan-26

20:14

859,600

ImplatSetup.dll

10.0.14393.8862

18-Jan-26

20:14

137,152

winsockai.dll

10.0.14393.8862

18-Jan-26

20:14

83,392

ws2_helper.dll

10.0.14393.8862

18-Jan-26

20:14

95,720

wmicmiplugin.dll

10.0.14393.8862

18-Jan-26

20:14

395,752

offlinelsa.dll

10.0.14393.8862

18-Jan-26

20:14

124,352

offlinesam.dll

10.0.14393.8862

18-Jan-26

20:14

262,120

poqexec.exe.mui

10.0.14393.8862

18-Jan-26

20:14

3,072

mofinstall.dll

10.0.14393.8862

18-Jan-26

20:14

74,728

esscli.dll

10.0.14393.8862

18-Jan-26

20:14

398,824

mofd.dll

10.0.14393.8862

18-Jan-26

20:14

247,232

repdrvfs.dll

10.0.14393.8862

18-Jan-26

20:14

353,728

fastprox.dll

10.0.14393.8862

18-Jan-26

20:14

856,536

wbemcomn.dll

10.0.14393.8862

18-Jan-26

20:14

453,096

wbemcore.dll

10.0.14393.8862

18-Jan-26

20:14

1,230,784

wmiutils.dll

10.0.14393.8862

18-Jan-26

20:14

120,256

wbemprox.dll

10.0.14393.8862

18-Jan-26

20:14

43,984

shtransform.dll

10.0.14393.8862

18-Jan-26

20:14

39,912

bfsvc.dll

10.0.14393.8862

18-Jan-26

20:14

211,416

securebootai.dll

10.0.14393.8862

18-Jan-26

20:14

339,392

fveupdateai.dll

10.0.14393.8862

18-Jan-26

20:14

33,752

cmitrust.dll

10.0.14393.8862

18-Jan-26

20:14

401,344

peerdistai.dll

10.0.14393.8862

18-Jan-26

20:14

39,384

PrintAdvancedInstaller.dll

10.0.14393.8862

18-Jan-26

20:14

103,896

msdtcadvancedinstaller.dll

10.0.14393.8862

18-Jan-26

20:14

65,984

netfxconfig.dll

10.0.14393.8862

18-Jan-26

20:14

31,680

ConfigureIEOptionalComponentsAI.dll

10.0.14393.8862

18-Jan-26

20:14

54,744

IEFileInstallAI.dll

10.0.14393.8862

18-Jan-26

20:14

38,360

servicemodelregai.dll

10.0.14393.8862

18-Jan-26

20:14

89,576

SetIEInstalledDateAI.dll

10.0.14393.8862

18-Jan-26

20:14

25,560

bcdeditai.dll

10.0.14393.8862

18-Jan-26

20:14

297,432

FeatureSettingsOverride.dll

10.0.14393.8862

18-Jan-26

20:14

41,448

SupplementalServicingAI.dll

10.0.14393.8862

18-Jan-26

20:14

18,432

PrimitiveTransformers.dll

10.0.14393.8862

18-Jan-26

20:14

67,048

AriTransformer.dll

10.0.14393.8862

18-Jan-26

20:14

57,816

WpnDataTransformer.dll

10.0.14393.8862

18-Jan-26

20:14

38,336

mqcmiplugin.dll

5.0.1.1

18-Jan-26

20:14

155,608

appserverai.dll

10.0.14393.8862

18-Jan-26

20:14

115,160

RDWebAI.dll

10.0.14393.8862

18-Jan-26

20:14

120,784

tssdisai.dll

10.0.14393.8862

18-Jan-26

20:14

122,856

VmHostAI.dll

10.0.14393.8862

18-Jan-26

20:14

101,312

wdscore.dll

10.0.14393.8862

18-Jan-26

20:14

268,248

drvstore.dll

10.0.14393.8862

18-Jan-26

20:14

909,800

dpx.dll

5.0.1.1

18-Jan-26

20:14

508,864

msdelta.dll

5.0.1.1

18-Jan-26

20:14

516,056

mspatcha.dll

5.0.1.1

18-Jan-26

20:14

55,272

cmiaisupport.dll

10.0.14393.8862

18-Jan-26

20:14

2,925,016

WcmTypes.xsd

Not versioned

18-Jan-26

20:14

1,047

CbsMsg.dll

10.0.14393.8862

18-Jan-26

20:14

51,672

CbsCore.dll

10.0.14393.8862

18-Jan-26

20:14

2,041,280

TiWorker.exe

10.0.14393.8862

18-Jan-26

20:14

199,680

TiFileFetcher.exe

10.0.14393.8862

18-Jan-26

20:14

290,256

drupdate.dll

10.0.14393.8862

18-Jan-26

20:14

337,344

wcp.dll

10.0.14393.8862

18-Jan-26

20:14

3,202,536

cmiadapter.dll

10.0.14393.8862

18-Jan-26

20:14

85,976

smiengine.dll

10.0.14393.8862

18-Jan-26

20:14

865,768

smipi.dll

10.0.14393.8862

18-Jan-26

20:14

37,848

poqexec.exe

10.0.14393.8862

18-Jan-26

20:14

142,848

amd64_installed

Not versioned

18-Jan-26

20:14

9

GlobalInstallOrder.xml

Not versioned

18-Jan-26

20:14

1,247,706

wrpint.dll

10.0.14393.8862

18-Jan-26

20:14

77,784

iissetupai.dll

10.0.14393.8862

18-Jan-26

20:14

123,856

cleanupai.dll

10.0.14393.8862

18-Jan-26

20:14

25,048

luainstall.dll

10.0.14393.8862

18-Jan-26

20:14

52,696

appxreg.dll

10.0.14393.8862

18-Jan-26

20:14

37,824

appxprovisionpackage.dll

10.0.14393.8862

18-Jan-26

20:14

78,784

EventsInstaller.dll

10.0.14393.8862

18-Jan-26

20:14

178,128

CntrtextInstaller.dll

10.0.14393.8862

18-Jan-26

20:14

141,264

grouptrusteeai.dll

10.0.14393.8862

18-Jan-26

20:14

39,872

sppinst.dll

10.0.14393.8862

18-Jan-26

20:14

38,352

timezoneai.dll

10.0.14393.8862

18-Jan-26

20:14

60,904

httpai.dll

10.0.14393.8862

18-Jan-26

20:14

29,120

cmifw.dll

10.0.14393.8862

18-Jan-26

20:14

91,584

FirewallOfflineAPI.dll

10.0.14393.8862

18-Jan-26

20:14

162,776

NetSetupAI.dll

10.0.14393.8862

18-Jan-26

20:14

105,424

NetSetupApi.dll

10.0.14393.8862

18-Jan-26

20:14

113,088

NetSetupEngine.dll

10.0.14393.8862

18-Jan-26

20:14

607,680

ImplatSetup.dll

10.0.14393.8862

18-Jan-26

20:14

102,336

winsockai.dll

10.0.14393.8862

18-Jan-26

20:14

74,704

ws2_helper.dll

10.0.14393.8862

18-Jan-26

20:14

79,832

wmicmiplugin.dll

10.0.14393.8862

18-Jan-26

20:14

274,368

mofinstall.dll

10.0.14393.8862

18-Jan-26

20:14

73,688

esscli.dll

10.0.14393.8862

18-Jan-26

20:14

300,992

mofd.dll

10.0.14393.8862

18-Jan-26

20:14

208,832

repdrvfs.dll

10.0.14393.8862

18-Jan-26

20:14

283,584

fastprox.dll

10.0.14393.8862

18-Jan-26

20:14

671,192

wbemcomn.dll

10.0.14393.8862

18-Jan-26

20:14

389,584

wbemcore.dll

10.0.14393.8862

18-Jan-26

20:14

985,552

wmiutils.dll

10.0.14393.8862

18-Jan-26

20:14

99,776

wbemprox.dll

10.0.14393.8862

18-Jan-26

20:14

37,840

shtransform.dll

10.0.14393.8862

18-Jan-26

20:14

34,256

bfsvc.dll

10.0.14393.8862

18-Jan-26

20:14

182,224

securebootai.dll

10.0.14393.8862

18-Jan-26

20:14

292,800

fveupdateai.dll

10.0.14393.8862

18-Jan-26

20:14

29,136

cmitrust.dll

10.0.14393.8862

18-Jan-26

20:14

276,952

peerdistai.dll

10.0.14393.8862

18-Jan-26

20:14

33,728

PrintAdvancedInstaller.dll

10.0.14393.8862

18-Jan-26

20:14

94,656

msdtcadvancedinstaller.dll

10.0.14393.8862

18-Jan-26

20:14

56,272

netfxconfig.dll

10.0.14393.8862

18-Jan-26

20:14

28,632

ConfigureIEOptionalComponentsAI.dll

10.0.14393.8862

18-Jan-26

20:14

48,080

IEFileInstallAI.dll

10.0.14393.8862

18-Jan-26

20:14

36,800

servicemodelregai.dll

10.0.14393.8862

18-Jan-26

20:14

74,176

SetIEInstalledDateAI.dll

10.0.14393.8862

18-Jan-26

20:14

24,000

bcdeditai.dll

10.0.14393.8862

18-Jan-26

20:14

273,344

FeatureSettingsOverride.dll

10.0.14393.8862

18-Jan-26

20:14

35,776

SupplementalServicingAI.dll

10.0.14393.8862

18-Jan-26

20:14

17,920

PrimitiveTransformers.dll

10.0.14393.8862

18-Jan-26

20:14

52,672

AriTransformer.dll

10.0.14393.8862

18-Jan-26

20:14

51,152

WpnDataTransformer.dll

10.0.14393.8862

18-Jan-26

20:14

31,720

appserverai.dll

10.0.14393.8862

18-Jan-26

20:14

94,656

RDWebAI.dll

10.0.14393.8862

18-Jan-26

20:14

104,896

tssdisai.dll

10.0.14393.8862

18-Jan-26

20:14

103,376

VmHostAI.dll

10.0.14393.8862

18-Jan-26

20:14

84,416

wdscore.dll

10.0.14393.8862

18-Jan-26

20:14

221,120

drvstore.dll

10.0.14393.8862

18-Jan-26

20:14

751,568

dpx.dll

5.0.1.1

18-Jan-26

20:14

382,936

msdelta.dll

5.0.1.1

18-Jan-26

20:14

408,024

mspatcha.dll

5.0.1.1

18-Jan-26

20:14

46,016

cmiaisupport.dll

10.0.14393.8862

18-Jan-26

20:14

1,915,344

CbsMsg.dll

10.0.14393.8862

18-Jan-26

20:14

50,624

CbsCore.dll

10.0.14393.8862

18-Jan-26

20:14

1,791,424

TiWorker.exe

10.0.14393.8862

18-Jan-26

20:14

197,120

TiFileFetcher.exe

10.0.14393.8862

18-Jan-26

20:14

247,744

drupdate.dll

10.0.14393.8862

18-Jan-26

20:14

287,168

wcp.dll

10.0.14393.8862

18-Jan-26

20:14

2,739,160

cmiadapter.dll

10.0.14393.8862

18-Jan-26

20:14

74,200

smiengine.dll

10.0.14393.8862

18-Jan-26

20:14

748,480

smipi.dll

10.0.14393.8862

18-Jan-26

20:14

33,216

poqexec.exe

10.0.14393.8862

18-Jan-26

20:14

120,320

x86_installed

Not versioned

18-Jan-26

20:14

9

wrpint.dll

10.0.14393.8862

18-Jan-26

20:14

68,032

cleanupai.dll

10.0.14393.8862

18-Jan-26

20:14

22,976

References

Servicing stack updates

Servicing Stack Updates (SSU): Frequently Asked Questions

ADV990001 | Latest Servicing Stack Updates

The benefits of Windows 10 Dynamic Update

Updating Windows 10 media with Dynamic Update packages

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

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