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Servicing stack update for Windows 10 version 1507: October 8, 2019

View products that this article applies to.

Summary

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Key changes include the following:

  • Improves the Secure Boot revocation list (DBX) update experience to avoid multiple restarts when you deploy the DBX update on a device where the Credential Guard service is not running.
  • Addresses an issue in which the Secure Boot revocation list (DBX) is not applied when the Secure Boot allow list (DB) update is empty.

We strongly recommend you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). Installing servicing stack updates (SSU) makes sure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft security fixes.

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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.  

Update replacement information 

This update replaces the previously released update KB 4512573.

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File Information

File verification

File hash information
File name SHA1 hash SHA256 hash
Windows10.0-KB4521856-x86.msu FC9BF5E9C2F1294032CDADC41D39DD4F0A7CDE8C 65B13502A4EEE5FA653E44FE1D2D416A016E601506CBD0B921C2FA5EB5F64A38
Windows10.0-KB4521856-x64.msu A348E1C960B4A98CD4CE7882A562467F93524A29 56BCF76961428CE9E75288F4D19C26F273414672C6EECCE570761305D45403E8

File attributes

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

Windows 10 file information

For all supported x86-based versions
File name File version File size Date Time Platform
Netsetupapi.dll 10.0.10240.16719 78,176 09-Feb-2016 02:45 x86
Networkbindingenginetransformer.dll 10.0.10240.18330 200,704 13-Aug-2019 05:41 x86
Bcdeditai.dll 10.0.10240.16439 260,096 04-Aug-2015 03:14 x86
Cmipnpinstall.dll 10.0.10240.17831 192,344 24-Mar-2018 06:42 x86
Configureieoptionalcomponentsai.dll 10.0.10240.16384 38,400 10-Jul-2015 03:25 x86
Featuresettingsoverride.dll 10.0.10240.16384 25,088 10-Jul-2015 03:39 x86
Iefileinstallai.dll 10.0.10240.16384 27,136 10-Jul-2015 03:25 x86
Msdtcadvancedinstaller.dll 10.0.10240.17831 47,104 24-Mar-2018 04:48 x86
Netfxconfig.dll 10.0.10240.16384 18,944 10-Jul-2015 03:25 x86
Peerdistai.dll 10.0.10240.16384 24,064 10-Jul-2015 03:25 x86
Printadvancedinstaller.dll 10.0.10240.17831 84,992 24-Mar-2018 04:48 x86
Registeriepkeysai.dll 10.0.10240.16384 13,824 10-Jul-2015 03:25 x86
Servicemodelregai.dll 10.0.10240.16384 64,512 10-Jul-2015 03:25 x86
Setieinstalleddateai.dll 10.0.10240.16384 14,336 10-Jul-2015 03:25 x86
Aritransformer.dll 10.0.10240.16384 37,376 10-Jul-2015 03:25 x86
Primitivetransformers.dll 10.0.10240.16384 42,496 10-Jul-2015 03:26 x86
Wpndatatransformer.dll 10.0.10240.16384 20,992 10-Jul-2015 03:25 x86
Mqcmiplugin.dll 10.0.10240.17831 122,880 24-Mar-2018 05:42 x86
Esscli.dll 10.0.10240.17831 299,008 24-Mar-2018 04:36 x86
Eventsinstaller.dll 10.0.10240.17831 166,912 24-Mar-2018 04:58 x86
Fastprox.dll 10.0.10240.17831 669,696 24-Mar-2018 04:36 x86
Mofd.dll 10.0.10240.17831 201,728 24-Mar-2018 04:36 x86
Mofinstall.dll 10.0.10240.17831 63,488 24-Mar-2018 04:36 x86
Repdrvfs.dll 10.0.10240.17831 277,504 24-Mar-2018 04:36 x86
Wbemcomn.dll 10.0.10240.18210 385,536 09-Apr-2019 05:21 x86
Wbemcore.dll 10.0.10240.17831 921,088 24-Mar-2018 04:36 x86
Wbemprox.dll 10.0.10240.17831 30,208 24-Mar-2018 04:36 x86
Wmicmiplugin.dll 10.0.10240.18271 272,384 18-Jun-2019 04:39 x86
Wmiutils.dll 10.0.10240.17831 91,136 24-Mar-2018 04:36 x86
Appxprovisionpackage.dll 10.0.10240.17020 63,488 21-Jun-2016 10:18 x86
Appxreg.dll 10.0.10240.17020 24,576 21-Jun-2016 10:16 x86
Bfsvc.dll 10.0.10240.16384 56,832 10-Jul-2015 03:23 x86
Cleanupai.dll 10.0.10240.16384 12,800 10-Jul-2015 03:23 x86
Cmitrust.dll 10.0.10240.17831 288,088 24-Mar-2018 06:42 x86
Cntrtextinstaller.dll 10.0.10240.16384 127,488 10-Jul-2015 03:23 x86
Fveupdateai.dll 10.0.10240.16384 18,944 10-Jul-2015 03:23 x86
Grouptrusteeai.dll 10.0.10240.16384 38,240 10-Jul-2015 05:18 x86
Httpai.dll 10.0.10240.16384 16,896 10-Jul-2015 03:23 x86
Luainstall.dll 10.0.10240.16384 42,496 10-Jul-2015 03:23 x86
Securebootai.dll 10.0.10240.18362 22,016 17-Sep-2019 15:26 x86
Timezoneai.dll 10.0.10240.17831 51,200 24-Mar-2018 04:35 x86
Winsockai.dll 10.0.10240.16384 65,536 10-Jul-2015 03:23 x86
Ws2_helper.dll 10.0.10240.16384 69,632 10-Jul-2015 03:23 x86
Offlinelsa.dll 10.0.10240.16384 100,864 10-Jul-2015 03:29 x86
Offlinesam.dll 10.0.10240.16384 110,080 10-Jul-2015 03:29 x86
Sppinst.dll 10.0.10240.18210 647,168 09-Apr-2019 05:22 x86
Cmifw.dll 10.0.10240.16384 80,384 10-Jul-2015 03:33 x86
Firewallofflineapi.dll 10.0.10240.17831 147,968 24-Mar-2018 05:30 x86
Implatsetup.dll 10.0.10240.17020 54,784 21-Jun-2016 10:45 x86
Netsetupai.dll 10.0.10240.17020 79,360 21-Jun-2016 10:29 x86
Netsetupapi.dll 10.0.10240.16719 78,176 09-Feb-2016 02:45 x86
Netsetupengine.dll 10.0.10240.18330 468,728 13-Aug-2019 06:13 x86
Cbscore.dll 10.0.10240.18362 1,777,152 17-Sep-2019 17:07 x86
Cbsmsg.dll 10.0.10240.16384 49,504 10-Jul-2015 04:40 x86
Cmiadapter.dll 10.0.10240.16384 64,512 10-Jul-2015 03:23 x86
Cmiaisupport.dll 10.0.10240.18330 2,160,080 13-Aug-2019 06:06 x86
Dpx.dll 10.0.10240.17831 372,224 24-Mar-2018 04:43 x86
Drupdate.dll 10.0.10240.17831 283,480 24-Mar-2018 06:37 x86
Drvstore.dll 10.0.10240.18330 700,152 13-Aug-2019 06:05 x86
Globalinstallorder.xml Not applicable 1,249,165 25-Apr-2015 00:17 Not applicable
Msdelta.dll 10.0.10240.17831 410,624 24-Mar-2018 04:35 x86
Mspatcha.dll 10.0.10240.17831 36,864 24-Mar-2018 04:43 x86
Poqexec.exe 10.0.10240.16384 118,272 10-Jul-2015 03:25 x86
Smiengine.dll 10.0.10240.18330 730,112 13-Aug-2019 04:20 x86
Smipi.dll 10.0.10240.17831 23,552 24-Mar-2018 04:48 x86
Tifilefetcher.exe 10.0.10240.18362 233,208 17-Sep-2019 17:24 x86
Tiworker.exe 10.0.10240.17831 197,120 24-Mar-2018 04:42 x86
Wcmtypes.xsd Not applicable 1,047 27-Mar-2015 21:48 Not applicable
Wcp.dll 10.0.10240.18362 2,717,696 17-Sep-2019 17:08 x86
Wdscore.dll 10.0.10240.17831 207,192 24-Mar-2018 06:38 x86
Wrpint.dll 10.0.10240.17831 55,808 24-Mar-2018 04:49 x86
For all supported x64-based versions
File name File version File size Date Time Platform
Netsetupapi.dll 10.0.10240.16719 103,776 09-Feb-2016 03:15 x64
Networkbindingenginetransformer.dll 10.0.10240.18330 304,128 13-Aug-2019 06:21 x64
Bcdeditai.dll 10.0.10240.16439 283,648 04-Aug-2015 03:05 x64
Cmipnpinstall.dll 10.0.10240.17831 244,056 24-Mar-2018 07:22 x64
Configureieoptionalcomponentsai.dll 10.0.10240.16384 46,080 10-Jul-2015 03:15 x64
Featuresettingsoverride.dll 10.0.10240.16384 31,744 10-Jul-2015 03:28 x64
Iefileinstallai.dll 10.0.10240.16384 29,184 10-Jul-2015 03:14 x64
Msdtcadvancedinstaller.dll 10.0.10240.17831 58,880 24-Mar-2018 04:53 x64
Netfxconfig.dll 10.0.10240.16384 22,528 10-Jul-2015 03:15 x64
Peerdistai.dll 10.0.10240.16384 30,208 10-Jul-2015 03:15 x64
Printadvancedinstaller.dll 10.0.10240.17831 97,792 24-Mar-2018 04:53 x64
Registeriepkeysai.dll 10.0.10240.16384 16,384 10-Jul-2015 03:15 x64
Servicemodelregai.dll 10.0.10240.16384 80,384 10-Jul-2015 03:15 x64
Setieinstalleddateai.dll 10.0.10240.16384 16,384 10-Jul-2015 03:15 x64
Aritransformer.dll 10.0.10240.16384 50,688 10-Jul-2015 03:27 x64
Primitivetransformers.dll 10.0.10240.16384 57,856 10-Jul-2015 03:29 x64
Wpndatatransformer.dll 10.0.10240.16384 27,648 10-Jul-2015 03:27 x64
Mqcmiplugin.dll 10.0.10240.17831 148,992 24-Mar-2018 06:05 x64
Appserverai.dll 10.0.10240.16384 109,056 10-Jul-2015 03:24 x64
Rdwebai.dll 10.0.10240.16384 113,152 10-Jul-2015 03:24 x64
Tssdisai.dll 10.0.10240.16384 116,224 10-Jul-2015 03:24 x64
Vmhostai.dll 10.0.10240.16384 93,696 10-Jul-2015 03:24 x64
Esscli.dll 10.0.10240.17831 402,432 24-Mar-2018 05:09 x64
Eventsinstaller.dll 10.0.10240.17831 214,016 24-Mar-2018 06:30 x64
Fastprox.dll 10.0.10240.17831 854,528 24-Mar-2018 05:11 x64
Mofd.dll 10.0.10240.17831 246,272 24-Mar-2018 05:09 x64
Mofinstall.dll 10.0.10240.17831 67,584 24-Mar-2018 05:09 x64
Repdrvfs.dll 10.0.10240.17831 350,208 24-Mar-2018 05:09 x64
Wbemcomn.dll 10.0.10240.17831 449,024 24-Mar-2018 05:09 x64
Wbemcore.dll 10.0.10240.18330 1,147,392 13-Aug-2019 04:53 x64
Wbemprox.dll 10.0.10240.17831 36,864 24-Mar-2018 05:11 x64
Wmicmiplugin.dll 10.0.10240.18271 340,992 18-Jun-2019 05:52 x64
Wmiutils.dll 10.0.10240.17831 112,128 24-Mar-2018 05:10 x64
Appxprovisionpackage.dll 10.0.10240.17020 74,752 21-Jun-2016 06:50 x64
Appxreg.dll 10.0.10240.17020 30,720 21-Jun-2016 06:30 x64
Bfsvc.dll 10.0.10240.16384 67,072 10-Jul-2015 03:14 x64
Cleanupai.dll 10.0.10240.16384 15,360 10-Jul-2015 03:15 x64
Cmitrust.dll 10.0.10240.17831 421,720 24-Mar-2018 07:22 x64
Cntrtextinstaller.dll 10.0.10240.16384 153,088 10-Jul-2015 03:15 x64
Fveupdateai.dll 10.0.10240.16384 24,064 10-Jul-2015 03:14 x64
Grouptrusteeai.dll 10.0.10240.16384 43,872 10-Jul-2015 05:07 x64
Httpai.dll 10.0.10240.16384 19,968 10-Jul-2015 03:15 x64
Luainstall.dll 10.0.10240.16384 52,736 10-Jul-2015 03:14 x64
Securebootai.dll 10.0.10240.18362 26,112 17-Sep-2019 15:36 x64
Timezoneai.dll 10.0.10240.17831 67,072 24-Mar-2018 04:53 x64
Winsockai.dll 10.0.10240.16384 73,216 10-Jul-2015 03:15 x64
Ws2_helper.dll 10.0.10240.16384 83,456 10-Jul-2015 03:15 x64
Offlinelsa.dll 10.0.10240.16384 114,688 10-Jul-2015 03:33 x64
Offlinesam.dll 10.0.10240.16384 137,728 10-Jul-2015 03:33 x64
Sppinst.dll 10.0.10240.18330 769,024 13-Aug-2019 05:01 x64
Cmifw.dll 10.0.10240.16384 96,256 10-Jul-2015 03:23 x64
Firewallofflineapi.dll 10.0.10240.17831 173,568 24-Mar-2018 05:54 x64
Implatsetup.dll 10.0.10240.17020 78,848 21-Jun-2016 07:01 x64
Netsetupai.dll 10.0.10240.17020 104,960 21-Jun-2016 06:42 x64
Netsetupapi.dll 10.0.10240.16719 103,776 09-Feb-2016 03:15 x64
Netsetupengine.dll 10.0.10240.18330 660,216 13-Aug-2019 07:06 x64
Cbscore.dll 10.0.10240.18362 1,967,616 17-Sep-2019 17:37 x64
Cbsmsg.dll 10.0.10240.16384 50,528 10-Jul-2015 04:31 x64
Cmiadapter.dll 10.0.10240.16384 79,872 10-Jul-2015 03:14 x64
Cmiaisupport.dll 10.0.10240.18330 3,158,992 13-Aug-2019 06:58 x64
Dpx.dll 10.0.10240.17831 499,200 24-Mar-2018 04:47 x64
Drupdate.dll 10.0.10240.17831 340,824 24-Mar-2018 07:18 x64
Drvstore.dll 10.0.10240.17831 850,264 24-Mar-2018 07:19 x64
Globalinstallorder.xml Not applicable 1,249,165 18-Jun-2015 01:17 Not applicable
Msdelta.dll 10.0.10240.17831 515,072 24-Mar-2018 04:51 x64
Mspatcha.dll 10.0.10240.17831 46,080 24-Mar-2018 04:46 x64
Poqexec.exe 10.0.10240.16384 141,824 10-Jul-2015 03:15 x64
Smiengine.dll 10.0.10240.17831 897,024 24-Mar-2018 04:54 x64
Smipi.dll 10.0.10240.16384 29,184 10-Jul-2015 03:15 x64
Tifilefetcher.exe 10.0.10240.18362 275,704 17-Sep-2019 18:06 x64
Tiworker.exe 10.0.10240.17831 200,192 24-Mar-2018 04:45 x64
Wcmtypes.xsd Not applicable 1,047 18-Jun-2015 01:16 Not applicable
Wcp.dll 10.0.10240.18362 3,229,696 17-Sep-2019 17:39 x64
Wdscore.dll 10.0.10240.17831 254,808 24-Mar-2018 07:23 x64
Wrpint.dll 10.0.10240.17831 66,560 24-Mar-2018 04:55 x64
Netsetupapi.dll 10.0.10240.16719 78,176 09-Feb-2016 02:45 x86
Networkbindingenginetransformer.dll 10.0.10240.18330 200,704 13-Aug-2019 05:41 x86
Bcdeditai.dll 10.0.10240.16439 260,096 04-Aug-2015 03:14 x86
Cmipnpinstall.dll 10.0.10240.17831 192,344 24-Mar-2018 06:42 x86
Configureieoptionalcomponentsai.dll 10.0.10240.16384 38,400 10-Jul-2015 03:25 x86
Featuresettingsoverride.dll 10.0.10240.16384 25,088 10-Jul-2015 03:39 x86
Iefileinstallai.dll 10.0.10240.16384 27,136 10-Jul-2015 03:25 x86
Msdtcadvancedinstaller.dll 10.0.10240.17831 47,104 24-Mar-2018 04:48 x86
Netfxconfig.dll 10.0.10240.16384 18,944 10-Jul-2015 03:25 x86
Peerdistai.dll 10.0.10240.16384 24,064 10-Jul-2015 03:25 x86
Printadvancedinstaller.dll 10.0.10240.17831 84,992 24-Mar-2018 04:48 x86
Registeriepkeysai.dll 10.0.10240.16384 13,824 10-Jul-2015 03:25 x86
Servicemodelregai.dll 10.0.10240.16384 64,512 10-Jul-2015 03:25 x86
Setieinstalleddateai.dll 10.0.10240.16384 14,336 10-Jul-2015 03:25 x86
Aritransformer.dll 10.0.10240.16384 37,376 10-Jul-2015 03:25 x86
Primitivetransformers.dll 10.0.10240.16384 42,496 10-Jul-2015 03:26 x86
Wpndatatransformer.dll 10.0.10240.16384 20,992 10-Jul-2015 03:25 x86
Appserverai.dll 10.0.10240.16384 85,504 10-Jul-2015 03:36 x86
Rdwebai.dll 10.0.10240.16384 95,232 10-Jul-2015 03:36 x86
Tssdisai.dll 10.0.10240.16384 94,208 10-Jul-2015 03:36 x86
Vmhostai.dll 10.0.10240.16384 74,752 10-Jul-2015 03:36 x86
Esscli.dll 10.0.10240.17831 299,008 24-Mar-2018 04:36 x86
Eventsinstaller.dll 10.0.10240.17831 166,912 24-Mar-2018 04:58 x86
Fastprox.dll 10.0.10240.17831 669,696 24-Mar-2018 04:36 x86
Mofd.dll 10.0.10240.17831 201,728 24-Mar-2018 04:36 x86
Mofinstall.dll 10.0.10240.17831 63,488 24-Mar-2018 04:36 x86
Repdrvfs.dll 10.0.10240.17831 277,504 24-Mar-2018 04:36 x86
Wbemcomn.dll 10.0.10240.18210 385,536 09-Apr-2019 05:21 x86
Wbemcore.dll 10.0.10240.17831 921,088 24-Mar-2018 04:36 x86
Wbemprox.dll 10.0.10240.17831 30,208 24-Mar-2018 04:36 x86
Wmicmiplugin.dll 10.0.10240.18271 272,384 18-Jun-2019 04:39 x86
Wmiutils.dll 10.0.10240.17831 91,136 24-Mar-2018 04:36 x86
Appxprovisionpackage.dll 10.0.10240.17020 63,488 21-Jun-2016 10:18 x86
Appxreg.dll 10.0.10240.17020 24,576 21-Jun-2016 10:16 x86
Bfsvc.dll 10.0.10240.16384 56,832 10-Jul-2015 03:23 x86
Cleanupai.dll 10.0.10240.16384 12,800 10-Jul-2015 03:23 x86
Cmitrust.dll 10.0.10240.17831 288,088 24-Mar-2018 06:42 x86
Cntrtextinstaller.dll 10.0.10240.16384 127,488 10-Jul-2015 03:23 x86
Fveupdateai.dll 10.0.10240.16384 18,944 10-Jul-2015 03:23 x86
Grouptrusteeai.dll 10.0.10240.16384 38,240 10-Jul-2015 05:18 x86
Httpai.dll 10.0.10240.16384 16,896 10-Jul-2015 03:23 x86
Luainstall.dll 10.0.10240.16384 42,496 10-Jul-2015 03:23 x86
Securebootai.dll 10.0.10240.18362 22,016 17-Sep-2019 15:26 x86
Timezoneai.dll 10.0.10240.17831 51,200 24-Mar-2018 04:35 x86
Winsockai.dll 10.0.10240.16384 65,536 10-Jul-2015 03:23 x86
Ws2_helper.dll 10.0.10240.16384 69,632 10-Jul-2015 03:23 x86
Offlinelsa.dll 10.0.10240.16384 100,864 10-Jul-2015 03:29 x86
Offlinesam.dll 10.0.10240.16384 110,080 10-Jul-2015 03:29 x86
Sppinst.dll 10.0.10240.18210 647,168 09-Apr-2019 05:22 x86
Cmifw.dll 10.0.10240.16384 80,384 10-Jul-2015 03:33 x86
Firewallofflineapi.dll 10.0.10240.17831 147,968 24-Mar-2018 05:30 x86
Implatsetup.dll 10.0.10240.17020 54,784 21-Jun-2016 10:45 x86
Netsetupai.dll 10.0.10240.17020 79,360 21-Jun-2016 10:29 x86
Netsetupapi.dll 10.0.10240.16719 78,176 09-Feb-2016 02:45 x86
Netsetupengine.dll 10.0.10240.18330 468,728 13-Aug-2019 06:13 x86
Cbscore.dll 10.0.10240.18362 1,777,152 17-Sep-2019 17:07 x86
Cbsmsg.dll 10.0.10240.16384 49,504 10-Jul-2015 04:40 x86
Cmiadapter.dll 10.0.10240.16384 64,512 10-Jul-2015 03:23 x86
Cmiaisupport.dll 10.0.10240.18330 2,160,080 13-Aug-2019 06:06 x86
Dpx.dll 10.0.10240.17831 372,224 24-Mar-2018 04:43 x86
Drupdate.dll 10.0.10240.17831 283,480 24-Mar-2018 06:37 x86
Drvstore.dll 10.0.10240.18330 700,152 13-Aug-2019 06:05 x86
Globalinstallorder.xml Not applicable 1,249,165 25-Apr-2015 00:17 Not applicable
Msdelta.dll 10.0.10240.17831 410,624 24-Mar-2018 04:35 x86
Mspatcha.dll 10.0.10240.17831 36,864 24-Mar-2018 04:43 x86
Poqexec.exe 10.0.10240.16384 118,272 10-Jul-2015 03:25 x86
Smiengine.dll 10.0.10240.18330 730,112 13-Aug-2019 04:20 x86
Smipi.dll 10.0.10240.17831 23,552 24-Mar-2018 04:48 x86
Tifilefetcher.exe 10.0.10240.18362 233,208 17-Sep-2019 17:24 x86
Tiworker.exe 10.0.10240.17831 197,120 24-Mar-2018 04:42 x86
Wcmtypes.xsd Not applicable 1,047 27-Mar-2015 21:48 Not applicable
Wcp.dll 10.0.10240.18362 2,717,696 17-Sep-2019 17:08 x86
Wdscore.dll 10.0.10240.17831 207,192 24-Mar-2018 06:38 x86
Wrpint.dll 10.0.10240.17831 55,808 24-Mar-2018 04:49 x86

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References

For more information about SSUs, see Servicing stack updates.

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

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Keywords: kbContentAuto, Vulnerabilities/exploits/security bulletins, windows 10, version 1507 update, kbsurveynew, kbsecvulnerability, kbsecurity, kbsecreview, kblangall, kbSupportTopic, kbfix, kbexpertiseinter, kbbug, atdownload, ssu for windows 10, kbsecbulletin

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Article Info
Article ID : 4521856
Revision : 10
Created on : 9/30/2019
Published on : 10/8/2019
Exists online : False
Views : 224