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.

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 KB5070247.

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

10.0.14393.8770

9-Dec-25

18:12

52,696

appxreg.dll

10.0.14393.8770

9-Dec-25

18:12

37,824

appxprovisionpackage.dll

10.0.14393.8770

9-Dec-25

18:12

78,784

EventsInstaller.dll

10.0.14393.8770

9-Dec-25

18:12

178,128

CntrtextInstaller.dll

10.0.14393.8770

9-Dec-25

18:12

141,272

grouptrusteeai.dll

10.0.14393.8770

9-Dec-25

18:12

39,896

sppinst.dll

10.0.14393.8770

9-Dec-25

18:12

38,352

timezoneai.dll

10.0.14393.8770

9-Dec-25

18:12

60,864

httpai.dll

10.0.14393.8770

9-Dec-25

18:12

29,120

cmifw.dll

10.0.14393.8770

9-Dec-25

18:12

91,600

FirewallOfflineAPI.dll

10.0.14393.8770

9-Dec-25

18:12

162,752

NetSetupAI.dll

10.0.14393.8770

9-Dec-25

18:12

105,432

NetSetupApi.dll

10.0.14393.8770

9-Dec-25

18:12

113,088

NetSetupEngine.dll

10.0.14393.8770

9-Dec-25

18:12

607,680

ImplatSetup.dll

10.0.14393.8770

9-Dec-25

18:12

102,336

winsockai.dll

10.0.14393.8770

9-Dec-25

18:12

74,704

ws2_helper.dll

10.0.14393.8770

9-Dec-25

18:12

79,808

wmicmiplugin.dll

10.0.14393.8770

9-Dec-25

18:12

274,368

offlinelsa.dll

10.0.14393.8770

9-Dec-25

18:12

112,064

offlinesam.dll

10.0.14393.8770

9-Dec-25

18:12

235,456

poqexec.exe.mui

10.0.14393.8770

9-Dec-25

18:12

3,072

mofinstall.dll

10.0.14393.8770

9-Dec-25

18:12

73,680

esscli.dll

10.0.14393.8770

9-Dec-25

18:12

301,016

mofd.dll

10.0.14393.8770

9-Dec-25

18:12

208,848

repdrvfs.dll

10.0.14393.8770

9-Dec-25

18:12

283,600

fastprox.dll

10.0.14393.8770

9-Dec-25

18:12

671,208

wbemcomn.dll

10.0.14393.8770

9-Dec-25

18:12

389,568

wbemcore.dll

10.0.14393.8770

9-Dec-25

18:12

985,536

wmiutils.dll

10.0.14393.8770

9-Dec-25

18:12

99,800

wbemprox.dll

10.0.14393.8770

9-Dec-25

18:12

37,864

shtransform.dll

10.0.14393.8770

9-Dec-25

18:12

34,256

bfsvc.dll

10.0.14393.8770

9-Dec-25

18:12

181,720

securebootai.dll

10.0.14393.8770

9-Dec-25

18:12

291,776

fveupdateai.dll

10.0.14393.8770

9-Dec-25

18:12

29,144

cmitrust.dll

10.0.14393.8770

9-Dec-25

18:12

276,968

peerdistai.dll

10.0.14393.8770

9-Dec-25

18:12

33,728

PrintAdvancedInstaller.dll

10.0.14393.8770

9-Dec-25

18:12

94,696

msdtcadvancedinstaller.dll

10.0.14393.8770

9-Dec-25

18:12

56,272

netfxconfig.dll

10.0.14393.8770

9-Dec-25

18:12

28,648

ConfigureIEOptionalComponentsAI.dll

10.0.14393.8770

9-Dec-25

18:12

48,088

IEFileInstallAI.dll

10.0.14393.8770

9-Dec-25

18:12

36,800

servicemodelregai.dll

10.0.14393.8770

9-Dec-25

18:12

74,216

SetIEInstalledDateAI.dll

10.0.14393.8770

9-Dec-25

18:12

24,024

bcdeditai.dll

10.0.14393.8770

9-Dec-25

18:12

273,384

FeatureSettingsOverride.dll

10.0.14393.8770

9-Dec-25

18:12

35,776

SupplementalServicingAI.dll

10.0.14393.8770

9-Dec-25

18:12

17,920

PrimitiveTransformers.dll

10.0.14393.8770

9-Dec-25

18:12

52,672

AriTransformer.dll

10.0.14393.8770

9-Dec-25

18:12

51,176

WpnDataTransformer.dll

10.0.14393.8770

9-Dec-25

18:12

31,680

mqcmiplugin.dll

5.0.1.1

9-Dec-25

18:12

132,072

wdscore.dll

10.0.14393.8770

9-Dec-25

18:12

221,120

drvstore.dll

10.0.14393.8770

9-Dec-25

18:12

751,576

dpx.dll

5.0.1.1

9-Dec-25

18:12

382,416

msdelta.dll

5.0.1.1

9-Dec-25

18:12

408,016

mspatcha.dll

5.0.1.1

9-Dec-25

18:12

46,040

cmiaisupport.dll

10.0.14393.8770

9-Dec-25

18:12

1,915,352

WcmTypes.xsd

Not versioned

9-Dec-25

18:12

1,047

CbsMsg.dll

10.0.14393.8770

9-Dec-25

18:12

50,648

CbsCore.dll

10.0.14393.8770

9-Dec-25

18:12

1,791,936

TiWorker.exe

10.0.14393.8770

9-Dec-25

18:12

197,120

TiFileFetcher.exe

10.0.14393.8770

9-Dec-25

18:12

247,744

drupdate.dll

10.0.14393.8770

9-Dec-25

18:12

287,184

wcp.dll

10.0.14393.8770

9-Dec-25

18:12

2,739,176

cmiadapter.dll

10.0.14393.8770

9-Dec-25

18:12

74,216

smiengine.dll

10.0.14393.8770

9-Dec-25

18:12

748,480

smipi.dll

10.0.14393.8770

9-Dec-25

18:12

33,240

poqexec.exe

10.0.14393.8770

9-Dec-25

18:12

120,320

x86_installed

Not versioned

9-Dec-25

18:12

9

GlobalInstallOrder.xml

Not versioned

9-Dec-25

18:12

1,247,706

wrpint.dll

10.0.14393.8770

9-Dec-25

18:12

68,048

iissetupai.dll

10.0.14393.8770

9-Dec-25

18:12

99,800

cleanupai.dll

10.0.14393.8770

9-Dec-25

18:12

22,976

File name

File version

Date

Time

File size

luainstall.dll

10.0.14393.8770

9-Dec-25

18:28

61,376

appxreg.dll

10.0.14393.8770

9-Dec-25

18:28

44,008

appxprovisionpackage.dll

10.0.14393.8770

9-Dec-25

18:28

88,016

EventsInstaller.dll

10.0.14393.8770

9-Dec-25

18:28

223,704

CntrtextInstaller.dll

10.0.14393.8770

9-Dec-25

18:28

164,288

grouptrusteeai.dll

10.0.14393.8770

9-Dec-25

18:28

45,016

sppinst.dll

10.0.14393.8770

9-Dec-25

18:28

43,456

timezoneai.dll

10.0.14393.8770

9-Dec-25

18:28

71,616

httpai.dll

10.0.14393.8770

9-Dec-25

18:28

32,216

cmifw.dll

10.0.14393.8770

9-Dec-25

18:28

102,872

FirewallOfflineAPI.dll

10.0.14393.8770

9-Dec-25

18:28

185,792

NetSetupAI.dll

10.0.14393.8770

9-Dec-25

18:28

133,568

NetSetupApi.dll

10.0.14393.8770

9-Dec-25

18:28

149,952

NetSetupEngine.dll

10.0.14393.8770

9-Dec-25

18:28

859,624

ImplatSetup.dll

10.0.14393.8770

9-Dec-25

18:28

137,152

winsockai.dll

10.0.14393.8770

9-Dec-25

18:28

83,416

ws2_helper.dll

10.0.14393.8770

9-Dec-25

18:28

95,704

wmicmiplugin.dll

10.0.14393.8770

9-Dec-25

18:28

395,728

offlinelsa.dll

10.0.14393.8770

9-Dec-25

18:28

124,352

offlinesam.dll

10.0.14393.8770

9-Dec-25

18:28

262,104

poqexec.exe.mui

10.0.14393.8770

9-Dec-25

18:28

3,072

mofinstall.dll

10.0.14393.8770

9-Dec-25

18:28

74,712

esscli.dll

10.0.14393.8770

9-Dec-25

18:28

398,784

mofd.dll

10.0.14393.8770

9-Dec-25

18:28

247,256

repdrvfs.dll

10.0.14393.8770

9-Dec-25

18:28

353,752

fastprox.dll

10.0.14393.8770

9-Dec-25

18:28

856,536

wbemcomn.dll

10.0.14393.8770

9-Dec-25

18:28

453,080

wbemcore.dll

10.0.14393.8770

9-Dec-25

18:28

1,230,824

wmiutils.dll

10.0.14393.8770

9-Dec-25

18:28

120,280

wbemprox.dll

10.0.14393.8770

9-Dec-25

18:28

43,992

shtransform.dll

10.0.14393.8770

9-Dec-25

18:28

39,888

bfsvc.dll

10.0.14393.8770

9-Dec-25

18:28

210,904

securebootai.dll

10.0.14393.8770

9-Dec-25

18:28

338,384

fveupdateai.dll

10.0.14393.8770

9-Dec-25

18:28

33,752

cmitrust.dll

10.0.14393.8770

9-Dec-25

18:28

401,368

peerdistai.dll

10.0.14393.8770

9-Dec-25

18:28

39,384

PrintAdvancedInstaller.dll

10.0.14393.8770

9-Dec-25

18:28

103,912

msdtcadvancedinstaller.dll

10.0.14393.8770

9-Dec-25

18:28

66,000

netfxconfig.dll

10.0.14393.8770

9-Dec-25

18:28

31,680

ConfigureIEOptionalComponentsAI.dll

10.0.14393.8770

9-Dec-25

18:28

54,744

IEFileInstallAI.dll

10.0.14393.8770

9-Dec-25

18:28

38,336

servicemodelregai.dll

10.0.14393.8770

9-Dec-25

18:28

89,560

SetIEInstalledDateAI.dll

10.0.14393.8770

9-Dec-25

18:28

25,576

bcdeditai.dll

10.0.14393.8770

9-Dec-25

18:28

297,432

FeatureSettingsOverride.dll

10.0.14393.8770

9-Dec-25

18:28

41,408

SupplementalServicingAI.dll

10.0.14393.8770

9-Dec-25

18:28

18,432

PrimitiveTransformers.dll

10.0.14393.8770

9-Dec-25

18:28

67,048

AriTransformer.dll

10.0.14393.8770

9-Dec-25

18:28

57,832

WpnDataTransformer.dll

10.0.14393.8770

9-Dec-25

18:28

38,336

mqcmiplugin.dll

5.0.1.1

9-Dec-25

18:28

155,624

appserverai.dll

10.0.14393.8770

9-Dec-25

18:28

115,160

RDWebAI.dll

10.0.14393.8770

9-Dec-25

18:28

120,768

tssdisai.dll

10.0.14393.8770

9-Dec-25

18:28

122,840

VmHostAI.dll

10.0.14393.8770

9-Dec-25

18:28

101,328

wdscore.dll

10.0.14393.8770

9-Dec-25

18:28

268,232

drvstore.dll

10.0.14393.8770

9-Dec-25

18:28

909,760

dpx.dll

5.0.1.1

9-Dec-25

18:28

508,888

msdelta.dll

5.0.1.1

9-Dec-25

18:28

516,056

mspatcha.dll

5.0.1.1

9-Dec-25

18:28

55,232

cmiaisupport.dll

10.0.14393.8770

9-Dec-25

18:28

2,925,024

WcmTypes.xsd

Not versioned

9-Dec-25

18:28

1,047

CbsMsg.dll

10.0.14393.8770

9-Dec-25

18:28

51,648

CbsCore.dll

10.0.14393.8770

9-Dec-25

18:28

2,042,328

TiWorker.exe

10.0.14393.8770

9-Dec-25

18:28

199,680

TiFileFetcher.exe

10.0.14393.8770

9-Dec-25

18:28

290,280

drupdate.dll

10.0.14393.8770

9-Dec-25

18:28

337,368

wcp.dll

10.0.14393.8770

9-Dec-25

18:28

3,202,496

cmiadapter.dll

10.0.14393.8770

9-Dec-25

18:28

85,992

smiengine.dll

10.0.14393.8770

9-Dec-25

18:28

865,752

smipi.dll

10.0.14393.8770

9-Dec-25

18:28

37,824

poqexec.exe

10.0.14393.8770

9-Dec-25

18:28

142,848

amd64_installed

Not versioned

9-Dec-25

18:28

9

GlobalInstallOrder.xml

Not versioned

9-Dec-25

18:28

1,247,706

wrpint.dll

10.0.14393.8770

9-Dec-25

18:28

77,776

iissetupai.dll

10.0.14393.8770

9-Dec-25

18:28

123,840

cleanupai.dll

10.0.14393.8770

9-Dec-25

18:28

25,064

luainstall.dll

10.0.14393.8770

9-Dec-25

18:28

52,696

appxreg.dll

10.0.14393.8770

9-Dec-25

18:28

37,824

appxprovisionpackage.dll

10.0.14393.8770

9-Dec-25

18:28

78,784

EventsInstaller.dll

10.0.14393.8770

9-Dec-25

18:28

178,128

CntrtextInstaller.dll

10.0.14393.8770

9-Dec-25

18:28

141,272

grouptrusteeai.dll

10.0.14393.8770

9-Dec-25

18:28

39,896

sppinst.dll

10.0.14393.8770

9-Dec-25

18:28

38,352

timezoneai.dll

10.0.14393.8770

9-Dec-25

18:28

60,864

httpai.dll

10.0.14393.8770

9-Dec-25

18:28

29,120

cmifw.dll

10.0.14393.8770

9-Dec-25

18:28

91,600

FirewallOfflineAPI.dll

10.0.14393.8770

9-Dec-25

18:28

162,752

NetSetupAI.dll

10.0.14393.8770

9-Dec-25

18:28

105,432

NetSetupApi.dll

10.0.14393.8770

9-Dec-25

18:28

113,088

NetSetupEngine.dll

10.0.14393.8770

9-Dec-25

18:28

607,680

ImplatSetup.dll

10.0.14393.8770

9-Dec-25

18:28

102,336

winsockai.dll

10.0.14393.8770

9-Dec-25

18:28

74,704

ws2_helper.dll

10.0.14393.8770

9-Dec-25

18:28

79,808

wmicmiplugin.dll

10.0.14393.8770

9-Dec-25

18:28

274,368

mofinstall.dll

10.0.14393.8770

9-Dec-25

18:28

73,680

esscli.dll

10.0.14393.8770

9-Dec-25

18:28

301,016

mofd.dll

10.0.14393.8770

9-Dec-25

18:28

208,848

repdrvfs.dll

10.0.14393.8770

9-Dec-25

18:28

283,600

fastprox.dll

10.0.14393.8770

9-Dec-25

18:28

671,208

wbemcomn.dll

10.0.14393.8770

9-Dec-25

18:28

389,568

wbemcore.dll

10.0.14393.8770

9-Dec-25

18:28

985,536

wmiutils.dll

10.0.14393.8770

9-Dec-25

18:28

99,800

wbemprox.dll

10.0.14393.8770

9-Dec-25

18:28

37,864

shtransform.dll

10.0.14393.8770

9-Dec-25

18:28

34,256

bfsvc.dll

10.0.14393.8770

9-Dec-25

18:28

181,720

securebootai.dll

10.0.14393.8770

9-Dec-25

18:28

291,776

fveupdateai.dll

10.0.14393.8770

9-Dec-25

18:28

29,144

cmitrust.dll

10.0.14393.8770

9-Dec-25

18:28

276,968

peerdistai.dll

10.0.14393.8770

9-Dec-25

18:28

33,728

PrintAdvancedInstaller.dll

10.0.14393.8770

9-Dec-25

18:28

94,696

msdtcadvancedinstaller.dll

10.0.14393.8770

9-Dec-25

18:28

56,272

netfxconfig.dll

10.0.14393.8770

9-Dec-25

18:28

28,648

ConfigureIEOptionalComponentsAI.dll

10.0.14393.8770

9-Dec-25

18:28

48,088

IEFileInstallAI.dll

10.0.14393.8770

9-Dec-25

18:28

36,800

servicemodelregai.dll

10.0.14393.8770

9-Dec-25

18:28

74,216

SetIEInstalledDateAI.dll

10.0.14393.8770

9-Dec-25

18:28

24,024

bcdeditai.dll

10.0.14393.8770

9-Dec-25

18:28

273,384

FeatureSettingsOverride.dll

10.0.14393.8770

9-Dec-25

18:28

35,776

SupplementalServicingAI.dll

10.0.14393.8770

9-Dec-25

18:28

17,920

PrimitiveTransformers.dll

10.0.14393.8770

9-Dec-25

18:28

52,672

AriTransformer.dll

10.0.14393.8770

9-Dec-25

18:28

51,176

WpnDataTransformer.dll

10.0.14393.8770

9-Dec-25

18:28

31,680

appserverai.dll

10.0.14393.8770

9-Dec-25

18:28

94,696

RDWebAI.dll

10.0.14393.8770

9-Dec-25

18:28

104,912

tssdisai.dll

10.0.14393.8770

9-Dec-25

18:28

103,384

VmHostAI.dll

10.0.14393.8770

9-Dec-25

18:28

84,456

wdscore.dll

10.0.14393.8770

9-Dec-25

18:28

221,120

drvstore.dll

10.0.14393.8770

9-Dec-25

18:28

751,576

dpx.dll

5.0.1.1

9-Dec-25

18:28

382,416

msdelta.dll

5.0.1.1

9-Dec-25

18:28

408,016

mspatcha.dll

5.0.1.1

9-Dec-25

18:28

46,040

cmiaisupport.dll

10.0.14393.8770

9-Dec-25

18:28

1,915,352

CbsMsg.dll

10.0.14393.8770

9-Dec-25

18:28

50,648

CbsCore.dll

10.0.14393.8770

9-Dec-25

18:28

1,791,936

TiWorker.exe

10.0.14393.8770

9-Dec-25

18:28

197,120

TiFileFetcher.exe

10.0.14393.8770

9-Dec-25

18:28

247,744

drupdate.dll

10.0.14393.8770

9-Dec-25

18:28

287,184

wcp.dll

10.0.14393.8770

9-Dec-25

18:28

2,739,176

cmiadapter.dll

10.0.14393.8770

9-Dec-25

18:28

74,216

smiengine.dll

10.0.14393.8770

9-Dec-25

18:28

748,480

smipi.dll

10.0.14393.8770

9-Dec-25

18:28

33,240

poqexec.exe

10.0.14393.8770

9-Dec-25

18:28

120,320

x86_installed

Not versioned

9-Dec-25

18:28

9

wrpint.dll

10.0.14393.8770

9-Dec-25

18:28

68,048

cleanupai.dll

10.0.14393.8770

9-Dec-25

18:28

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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