KB5001399: Servicing stack update for Windows 10: April 13, 2021

This update applies to the following:

  • ​Windows 10 for 32-bit devices

  • Windows 10 for x64-based devices

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.

This update also addresses an issue that might prevent the CVE-2020-0689 update from installing. The error message in the CBS.log file is TRUST_E_NOSIGNATURE. To learn more about this security vulnerability, see CVE-2020-0689 | Microsoft Secure Boot Security Feature Bypass Vulnerability.

How to get this update

Method 1: Windows Update 

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

Method 2: Microsoft Update Catalog 

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Method 3: Windows Server Update Services

This update is also available through Windows Server Update Services (WSUS).

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 KB5001079.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

File name

File version

Date

Time

File size

NetworkBindingEngineTransformer.dll

10.0.10240.18900

8-Mar-2021

22:10

201,216

NetSetupApi.dll

10.0.10240.16719

8-Feb-2016

18:45

78,176

peerdistai.dll

10.0.10240.18900

8-Mar-2021

20:52

24,064

PrintAdvancedInstaller.dll

10.0.10240.18900

8-Mar-2021

20:52

84,992

msdtcadvancedinstaller.dll

10.0.10240.18900

8-Mar-2021

20:52

47,104

netfxconfig.dll

10.0.10240.18900

8-Mar-2021

20:52

18,944

ConfigureIEOptionalComponentsAI.dll

10.0.10240.18900

8-Mar-2021

20:52

38,400

IEFileInstallAI.dll

10.0.10240.18900

8-Mar-2021

20:49

27,136

servicemodelregai.dll

10.0.10240.18900

8-Mar-2021

20:52

64,512

SetIEInstalledDateAI.dll

10.0.10240.18900

8-Mar-2021

20:52

14,336

bcdeditai.dll

10.0.10240.18900

8-Mar-2021

20:54

259,584

RegisterIEPKeysAI.dll

10.0.10240.18900

8-Mar-2021

20:52

13,824

cmipnpinstall.dll

10.0.10240.18900

8-Mar-2021

22:35

193,304

FeatureSettingsOverride.dll

10.0.10240.18900

8-Mar-2021

21:53

25,088

PrimitiveTransformers.dll

10.0.10240.18900

8-Mar-2021

20:55

43,008

WpnDataTransformer.dll

10.0.10240.18900

8-Mar-2021

20:49

20,992

AriTransformer.dll

10.0.10240.18900

8-Mar-2021

20:49

37,376

mqcmiplugin.dll

10.0.10240.18900

8-Mar-2021

21:44

122,880

EventsInstaller.dll

10.0.10240.18900

8-Mar-2021

21:03

166,912

mofinstall.dll

10.0.10240.18900

8-Mar-2021

20:41

63,488

esscli.dll

10.0.10240.17831

23-Mar-2018

21:36

299,008

mofd.dll

10.0.10240.18900

8-Mar-2021

20:41

203,264

repdrvfs.dll

10.0.10240.17831

23-Mar-2018

21:36

277,504

fastprox.dll

10.0.10240.17831

23-Mar-2018

21:36

669,696

wbemcomn.dll

10.0.10240.18210

8-Apr-2019

22:21

385,536

wbemcore.dll

10.0.10240.18602

14-May-2020

20:57

922,112

wmiutils.dll

10.0.10240.17831

23-Mar-2018

21:36

91,136

wbemprox.dll

10.0.10240.17831

23-Mar-2018

21:36

30,208

wmicmiplugin.dll

10.0.10240.18900

8-Mar-2021

20:41

272,384

httpai.dll

10.0.10240.18900

8-Mar-2021

20:39

16,896

securebootai.dll

10.0.10240.18900

8-Mar-2021

20:39

22,016

winsockai.dll

10.0.10240.18900

8-Mar-2021

20:39

65,536

ws2_helper.dll

10.0.10240.16384

9-Jul-2015

20:23

69,632

cleanupai.dll

10.0.10240.18900

8-Mar-2021

20:39

12,800

CntrtextInstaller.dll

10.0.10240.18900

8-Mar-2021

20:39

128,000

cmitrust.dll

10.0.10240.18900

8-Mar-2021

22:35

288,536

bfsvc.dll

10.0.10240.18900

8-Mar-2021

20:39

57,344

timezoneai.dll

10.0.10240.18900

8-Mar-2021

20:39

51,200

luainstall.dll

10.0.10240.18900

8-Mar-2021

20:39

42,496

fveupdateai.dll

10.0.10240.18900

8-Mar-2021

20:39

18,944

appxprovisionpackage.dll

10.0.10240.18900

8-Mar-2021

20:49

63,488

grouptrusteeai.dll

10.0.10240.18900

8-Mar-2021

22:50

38,160

appxreg.dll

10.0.10240.18900

8-Mar-2021

20:39

24,064

sppinst.dll

10.0.10240.18512

12-Feb-2020

20:04

647,168

offlinelsa.dll

10.0.10240.16384

9-Jul-2015

20:29

100,864

offlinesam.dll

10.0.10240.16384

9-Jul-2015

20:29

110,080

cmifw.dll

10.0.10240.18900

8-Mar-2021

21:37

80,896

FirewallOfflineAPI.dll

10.0.10240.17831

23-Mar-2018

22:30

147,968

NetSetupAI.dll

10.0.10240.18900

8-Mar-2021

21:31

79,360

NetSetupEngine.dll

10.0.10240.18512

12-Feb-2020

22:09

468,728

ImplatSetup.dll

10.0.10240.17020

21-Jun-2016

3:45

54,784

wdscore.dll

10.0.10240.17831

23-Mar-2018

23:38

207,192

drvstore.dll

10.0.10240.18512

12-Feb-2020

21:59

700,152

dpx.dll

10.0.10240.17831

23-Mar-2018

21:43

372,224

msdelta.dll

10.0.10240.17831

23-Mar-2018

21:35

410,624

mspatcha.dll

10.0.10240.17831

23-Mar-2018

21:43

36,864

cmiaisupport.dll

10.0.10240.18900

8-Mar-2021

22:34

2,168,568

WcmTypes.xsd

Not versioned

27-Mar-2015

14:48

1,047

CbsMsg.dll

10.0.10240.16384

9-Jul-2015

21:40

49,504

CbsCore.dll

10.0.10240.18900

8-Mar-2021

22:18

1,777,664

TiWorker.exe

10.0.10240.17831

23-Mar-2018

21:42

197,120

TiFileFetcher.exe

10.0.10240.18512

12-Feb-2020

21:59

233,208

DrUpdate.dll

10.0.10240.18900

8-Mar-2021

22:34

283,384

wrpint.dll

10.0.10240.17831

23-Mar-2018

21:49

55,808

wcp.dll

10.0.10240.18900

8-Mar-2021

22:19

2,717,184

cmiadapter.dll

10.0.10240.18900

8-Mar-2021

20:39

64,512

smiengine.dll

10.0.10240.18900

8-Mar-2021

20:53

730,112

smipi.dll

10.0.10240.17831

23-Mar-2018

21:48

23,552

poqexec.exe

10.0.10240.16384

9-Jul-2015

20:25

118,272

x86_installed

Not versioned

27-Mar-2015

14:35

9

GlobalInstallOrder.xml

Not versioned

24-Apr-2015

17:17

1,249,165

File name

File version

Date

Time

File size

NetworkBindingEngineTransformer.dll

10.0.10240.18900

8-Mar-2021

22:36

304,640

NetSetupApi.dll

10.0.10240.16719

8-Feb-2016

19:15

103,776

peerdistai.dll

10.0.10240.18900

8-Mar-2021

20:54

30,208

PrintAdvancedInstaller.dll

10.0.10240.18900

8-Mar-2021

20:54

98,304

msdtcadvancedinstaller.dll

10.0.10240.18900

8-Mar-2021

20:53

58,880

netfxconfig.dll

10.0.10240.18900

8-Mar-2021

20:53

22,528

ConfigureIEOptionalComponentsAI.dll

10.0.10240.18900

8-Mar-2021

20:53

46,592

IEFileInstallAI.dll

10.0.10240.18900

8-Mar-2021

20:49

29,184

servicemodelregai.dll

10.0.10240.18900

8-Mar-2021

20:53

80,896

SetIEInstalledDateAI.dll

10.0.10240.18900

8-Mar-2021

20:53

16,384

bcdeditai.dll

10.0.10240.18900

8-Mar-2021

20:55

283,648

RegisterIEPKeysAI.dll

10.0.10240.18900

8-Mar-2021

20:53

16,384

cmipnpinstall.dll

10.0.10240.18900

8-Mar-2021

23:11

245,496

FeatureSettingsOverride.dll

10.0.10240.18900

8-Mar-2021

22:17

31,744

PrimitiveTransformers.dll

10.0.10240.18900

8-Mar-2021

22:19

58,368

WpnDataTransformer.dll

10.0.10240.18900

8-Mar-2021

22:15

27,648

AriTransformer.dll

10.0.10240.18900

8-Mar-2021

22:15

50,688

mqcmiplugin.dll

10.0.10240.18900

8-Mar-2021

22:03

149,504

appserverai.dll

10.0.10240.18900

8-Mar-2021

22:02

109,056

RDWebAI.dll

10.0.10240.18900

8-Mar-2021

22:02

113,152

tssdisai.dll

10.0.10240.18900

8-Mar-2021

22:02

116,224

VmHostAI.dll

10.0.10240.18900

8-Mar-2021

22:02

93,696

EventsInstaller.dll

10.0.10240.18900

8-Mar-2021

22:29

214,016

mofinstall.dll

10.0.10240.18900

8-Mar-2021

21:09

67,584

esscli.dll

10.0.10240.17831

23-Mar-2018

22:09

402,432

mofd.dll

10.0.10240.18900

8-Mar-2021

21:09

248,320

repdrvfs.dll

10.0.10240.17831

23-Mar-2018

22:09

350,208

fastprox.dll

10.0.10240.17831

23-Mar-2018

22:11

854,528

wbemcomn.dll

10.0.10240.17831

23-Mar-2018

22:09

449,024

wbemcore.dll

10.0.10240.18602

14-May-2020

21:29

1,147,392

wmiutils.dll

10.0.10240.17831

23-Mar-2018

22:10

112,128

wbemprox.dll

10.0.10240.17831

23-Mar-2018

22:11

36,864

wmicmiplugin.dll

10.0.10240.18900

8-Mar-2021

21:07

341,504

httpai.dll

10.0.10240.18900

8-Mar-2021

20:54

19,968

securebootai.dll

10.0.10240.18900

8-Mar-2021

20:50

26,112

winsockai.dll

10.0.10240.18900

8-Mar-2021

20:53

73,216

ws2_helper.dll

10.0.10240.16384

9-Jul-2015

20:15

83,456

cleanupai.dll

10.0.10240.18900

8-Mar-2021

20:53

15,360

CntrtextInstaller.dll

10.0.10240.18900

8-Mar-2021

20:52

153,600

cmitrust.dll

10.0.10240.18900

8-Mar-2021

23:11

422,160

bfsvc.dll

10.0.10240.18900

8-Mar-2021

20:49

67,072

timezoneai.dll

10.0.10240.18900

8-Mar-2021

20:56

67,584

luainstall.dll

10.0.10240.18900

8-Mar-2021

20:47

52,736

fveupdateai.dll

10.0.10240.18900

8-Mar-2021

20:49

24,064

appxprovisionpackage.dll

10.0.10240.18900

8-Mar-2021

22:15

74,752

grouptrusteeai.dll

10.0.10240.18900

8-Mar-2021

23:25

43,768

appxreg.dll

10.0.10240.18900

8-Mar-2021

20:45

30,208

sppinst.dll

10.0.10240.18512

12-Feb-2020

20:45

769,024

offlinelsa.dll

10.0.10240.16384

9-Jul-2015

20:33

114,688

offlinesam.dll

10.0.10240.16384

9-Jul-2015

20:33

137,728

cmifw.dll

10.0.10240.18900

8-Mar-2021

21:53

96,768

FirewallOfflineAPI.dll

10.0.10240.17831

23-Mar-2018

22:54

173,568

NetSetupAI.dll

10.0.10240.18900

8-Mar-2021

21:48

105,472

NetSetupEngine.dll

10.0.10240.18512

12-Feb-2020

22:52

660,216

ImplatSetup.dll

10.0.10240.17020

21-Jun-2016

0:01

78,848

wdscore.dll

10.0.10240.17831

24-Mar-2018

0:23

254,808

drvstore.dll

10.0.10240.18512

12-Feb-2020

22:43

850,168

dpx.dll

10.0.10240.17831

23-Mar-2018

21:47

499,200

msdelta.dll

10.0.10240.17831

23-Mar-2018

21:51

515,072

mspatcha.dll

10.0.10240.17831

23-Mar-2018

21:46

46,080

cmiaisupport.dll

10.0.10240.18900

8-Mar-2021

23:10

3,170,040

WcmTypes.xsd

Not versioned

17-Jun-2015

18:16

1,047

CbsMsg.dll

10.0.10240.16384

9-Jul-2015

21:31

50,528

CbsCore.dll

10.0.10240.18900

8-Mar-2021

22:46

1,968,128

TiWorker.exe

10.0.10240.17831

23-Mar-2018

21:45

200,192

TiFileFetcher.exe

10.0.10240.18512

12-Feb-2020

22:43

275,920

DrUpdate.dll

10.0.10240.18900

8-Mar-2021

23:10

340,728

wrpint.dll

10.0.10240.17831

23-Mar-2018

21:55

66,560

wcp.dll

10.0.10240.18900

8-Mar-2021

22:47

3,229,696

cmiadapter.dll

10.0.10240.18900

8-Mar-2021

20:49

80,384

smiengine.dll

10.0.10240.18900

8-Mar-2021

20:54

898,048

smipi.dll

10.0.10240.16384

9-Jul-2015

20:15

29,184

poqexec.exe

10.0.10240.16384

9-Jul-2015

20:15

141,824

amd64_installed

Not versioned

17-Jun-2015

18:05

9

GlobalInstallOrder.xml

Not versioned

17-Jun-2015

18:17

1,249,165

NetworkBindingEngineTransformer.dll

10.0.10240.18900

8-Mar-2021

22:10

201,216

NetSetupApi.dll

10.0.10240.16719

8-Feb-2016

18:45

78,176

peerdistai.dll

10.0.10240.18900

8-Mar-2021

20:52

24,064

PrintAdvancedInstaller.dll

10.0.10240.18900

8-Mar-2021

20:52

84,992

msdtcadvancedinstaller.dll

10.0.10240.18900

8-Mar-2021

20:52

47,104

netfxconfig.dll

10.0.10240.18900

8-Mar-2021

20:52

18,944

ConfigureIEOptionalComponentsAI.dll

10.0.10240.18900

8-Mar-2021

20:52

38,400

IEFileInstallAI.dll

10.0.10240.18900

8-Mar-2021

20:49

27,136

servicemodelregai.dll

10.0.10240.18900

8-Mar-2021

20:52

64,512

SetIEInstalledDateAI.dll

10.0.10240.18900

8-Mar-2021

20:52

14,336

bcdeditai.dll

10.0.10240.18900

8-Mar-2021

20:54

259,584

RegisterIEPKeysAI.dll

10.0.10240.18900

8-Mar-2021

20:52

13,824

cmipnpinstall.dll

10.0.10240.18900

8-Mar-2021

22:35

193,304

FeatureSettingsOverride.dll

10.0.10240.18900

8-Mar-2021

21:53

25,088

PrimitiveTransformers.dll

10.0.10240.18900

8-Mar-2021

20:55

43,008

WpnDataTransformer.dll

10.0.10240.18900

8-Mar-2021

20:49

20,992

AriTransformer.dll

10.0.10240.18900

8-Mar-2021

20:49

37,376

appserverai.dll

10.0.10240.18900

8-Mar-2021

21:43

85,504

RDWebAI.dll

10.0.10240.18900

8-Mar-2021

21:43

95,232

tssdisai.dll

10.0.10240.18900

8-Mar-2021

21:43

94,208

VmHostAI.dll

10.0.10240.18900

8-Mar-2021

21:43

74,752

EventsInstaller.dll

10.0.10240.18900

8-Mar-2021

21:03

166,912

mofinstall.dll

10.0.10240.18900

8-Mar-2021

20:41

63,488

esscli.dll

10.0.10240.17831

23-Mar-2018

21:36

299,008

mofd.dll

10.0.10240.18900

8-Mar-2021

20:41

203,264

repdrvfs.dll

10.0.10240.17831

23-Mar-2018

21:36

277,504

fastprox.dll

10.0.10240.17831

23-Mar-2018

21:36

669,696

wbemcomn.dll

10.0.10240.18210

8-Apr-2019

22:21

385,536

wbemcore.dll

10.0.10240.18602

14-May-2020

20:57

922,112

wmiutils.dll

10.0.10240.17831

23-Mar-2018

21:36

91,136

wbemprox.dll

10.0.10240.17831

23-Mar-2018

21:36

30,208

wmicmiplugin.dll

10.0.10240.18900

8-Mar-2021

20:41

272,384

httpai.dll

10.0.10240.18900

8-Mar-2021

20:39

16,896

securebootai.dll

10.0.10240.18900

8-Mar-2021

20:39

22,016

winsockai.dll

10.0.10240.18900

8-Mar-2021

20:39

65,536

ws2_helper.dll

10.0.10240.16384

9-Jul-2015

20:23

69,632

cleanupai.dll

10.0.10240.18900

8-Mar-2021

20:39

12,800

CntrtextInstaller.dll

10.0.10240.18900

8-Mar-2021

20:39

128,000

cmitrust.dll

10.0.10240.18900

8-Mar-2021

22:35

288,536

bfsvc.dll

10.0.10240.18900

8-Mar-2021

20:39

57,344

timezoneai.dll

10.0.10240.18900

8-Mar-2021

20:39

51,200

luainstall.dll

10.0.10240.18900

8-Mar-2021

20:39

42,496

fveupdateai.dll

10.0.10240.18900

8-Mar-2021

20:39

18,944

appxprovisionpackage.dll

10.0.10240.18900

8-Mar-2021

20:49

63,488

grouptrusteeai.dll

10.0.10240.18900

8-Mar-2021

22:50

38,160

appxreg.dll

10.0.10240.18900

8-Mar-2021

20:39

24,064

sppinst.dll

10.0.10240.18512

12-Feb-2020

20:04

647,168

offlinelsa.dll

10.0.10240.16384

9-Jul-2015

20:29

100,864

offlinesam.dll

10.0.10240.16384

9-Jul-2015

20:29

110,080

cmifw.dll

10.0.10240.18900

8-Mar-2021

21:37

80,896

FirewallOfflineAPI.dll

10.0.10240.17831

23-Mar-2018

22:30

147,968

NetSetupAI.dll

10.0.10240.18900

8-Mar-2021

21:31

79,360

NetSetupEngine.dll

10.0.10240.18512

12-Feb-2020

22:09

468,728

ImplatSetup.dll

10.0.10240.17020

21-Jun-2016

3:45

54,784

wdscore.dll

10.0.10240.17831

23-Mar-2018

23:38

207,192

drvstore.dll

10.0.10240.18512

12-Feb-2020

21:59

700,152

dpx.dll

10.0.10240.17831

23-Mar-2018

21:43

372,224

msdelta.dll

10.0.10240.17831

23-Mar-2018

21:35

410,624

mspatcha.dll

10.0.10240.17831

23-Mar-2018

21:43

36,864

cmiaisupport.dll

10.0.10240.18900

8-Mar-2021

22:34

2,168,568

WcmTypes.xsd

Not versioned

27-Mar-2015

14:48

1,047

CbsMsg.dll

10.0.10240.16384

9-Jul-2015

21:40

49,504

CbsCore.dll

10.0.10240.18900

8-Mar-2021

22:18

1,777,664

TiWorker.exe

10.0.10240.17831

23-Mar-2018

21:42

197,120

TiFileFetcher.exe

10.0.10240.18512

12-Feb-2020

21:59

233,208

DrUpdate.dll

10.0.10240.18900

8-Mar-2021

22:34

283,384

wrpint.dll

10.0.10240.17831

23-Mar-2018

21:49

55,808

wcp.dll

10.0.10240.18900

8-Mar-2021

22:19

2,717,184

cmiadapter.dll

10.0.10240.18900

8-Mar-2021

20:39

64,512

smiengine.dll

10.0.10240.18900

8-Mar-2021

20:53

730,112

smipi.dll

10.0.10240.17831

23-Mar-2018

21:48

23,552

poqexec.exe

10.0.10240.16384

9-Jul-2015

20:25

118,272

x86_installed

Not versioned

27-Mar-2015

14:35

9

GlobalInstallOrder.xml

Not versioned

24-Apr-2015

17:17

1,249,165

References

For information about SSUs, see the following articles:

For more information about Dynamic Updates, see the following articles:

Learn about the terminology that Microsoft uses to describe software updates.

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