KB5065766: Servicing stack update for Windows 10: September 9, 2025

Applies To
Windows 10 Win 10 IoT Ent LTSB 2015

Note

  • Windows Secure Boot certificate expiration
  • Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past months. Devices that haven’t received the newer certificates will continue to start and operate normally, and standard Windows updates will continue to install. We will continue to install the newer certificates via Windows updates in the coming months.
  • You can check your PC status on the Windows Security app. If you are an IT administrator, follow the guidance on the Secure Boot Playbook for Windows clients and Windows Server.
End of support information

Note

  • Support for Windows 10 has ended on October 14, 2025
  • After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11.
  • Learn more

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 KB5058527.

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.

For all supported x86-based versions
File name File version Date Time File size
NetworkBindingEngineTransformer.dll 10.0.10240.21121 11-Aug-25 23:22 201,216
NetSetupApi.dll 10.0.10240.21121 11-Aug-25 23:55 79,320
peerdistai.dll 10.0.10240.21121 11-Aug-25 21:58 24,064
PrintAdvancedInstaller.dll 10.0.10240.21121 11-Aug-25 21:58 84,992
msdtcadvancedinstaller.dll 10.0.10240.21121 11-Aug-25 21:58 47,104
netfxconfig.dll 10.0.10240.21121 11-Aug-25 21:58 18,944
ConfigureIEOptionalComponentsAI.dll 10.0.10240.21121 11-Aug-25 21:58 38,400
IEFileInstallAI.dll 10.0.10240.21121 11-Aug-25 21:54 27,136
servicemodelregai.dll 10.0.10240.21121 11-Aug-25 21:58 64,512
SetIEInstalledDateAI.dll 10.0.10240.21121 11-Aug-25 21:58 14,336
bcdeditai.dll 10.0.10240.21121 11-Aug-25 21:59 259,584
RegisterIEPKeysAI.dll 10.0.10240.21121 11-Aug-25 21:58 13,824
cmipnpinstall.dll 10.0.10240.21121 11-Aug-25 23:47 194,496
FeatureSettingsOverride.dll 10.0.10240.21121 11-Aug-25 23:05 25,088
PrimitiveTransformers.dll 10.0.10240.21121 11-Aug-25 22:01 43,008
WpnDataTransformer.dll 10.0.10240.21121 11-Aug-25 21:54 20,992
AriTransformer.dll 10.0.10240.21121 11-Aug-25 21:54 37,376
mqcmiplugin.dll 10.0.10240.21121 11-Aug-25 22:55 122,880
wdscore.dll 10.0.10240.21121 11-Aug-25 23:46 208,344
drvstore.dll 10.0.10240.21121 11-Aug-25 23:45 701,400
dpx.dll 10.0.10240.21121 11-Aug-25 21:52 371,712
msdelta.dll 10.0.10240.21121 11-Aug-25 21:43 410,624
mspatcha.dll 10.0.10240.21121 11-Aug-25 21:52 36,864
cmiaisupport.dll 10.0.10240.21121 11-Aug-25 23:45 2,169,808
WcmTypes.xsd Not versioned 1-Aug-25 2:33 1,047
CbsMsg.dll 10.0.10240.21121 11-Aug-25 23:45 50,624
CbsCore.dll 10.0.10240.21121 11-Aug-25 23:31 1,779,712
TiWorker.exe 10.0.10240.21121 11-Aug-25 21:52 197,120
TiFileFetcher.exe 10.0.10240.21121 11-Aug-25 23:45 234,456
DrUpdate.dll 10.0.10240.21121 11-Aug-25 23:45 284,632
wrpint.dll 10.0.10240.21121 11-Aug-25 21:59 55,808
wcp.dll 10.0.10240.21121 11-Aug-25 23:31 2,718,208
cmiadapter.dll 10.0.10240.21121 11-Aug-25 21:43 64,512
smiengine.dll 10.0.10240.21121 11-Aug-25 21:58 730,112
smipi.dll 10.0.10240.21121 11-Aug-25 21:58 23,552
poqexec.exe 10.0.10240.21121 11-Aug-25 21:58 118,272
x86_installed Not versioned 1-Aug-25 2:32 9
GlobalInstallOrder.xml Not versioned 1-Aug-25 2:33 1,249,165
EventsInstaller.dll 10.0.10240.21121 11-Aug-25 22:09 166,912
mofinstall.dll 10.0.10240.21121 11-Aug-25 21:45 63,488
esscli.dll 10.0.10240.21121 11-Aug-25 21:45 299,008
mofd.dll 10.0.10240.21121 11-Aug-25 21:45 203,264
repdrvfs.dll 10.0.10240.21121 11-Aug-25 21:45 277,504
fastprox.dll 10.0.10240.21121 11-Aug-25 21:45 669,696
wbemcomn.dll 10.0.10240.21121 11-Aug-25 21:45 385,536
wbemcore.dll 10.0.10240.21121 11-Aug-25 21:45 922,112
wmiutils.dll 10.0.10240.21121 11-Aug-25 21:45 91,136
wbemprox.dll 10.0.10240.21121 11-Aug-25 21:45 30,208
wmicmiplugin.dll 10.0.10240.21121 11-Aug-25 21:45 272,896
httpai.dll 10.0.10240.21121 11-Aug-25 21:43 16,896
securebootai.dll 10.0.10240.21121 12-Aug-25 0:12 157,184
winsockai.dll 10.0.10240.21121 11-Aug-25 21:43 65,536
ws2_helper.dll 10.0.10240.21121 11-Aug-25 21:43 69,632
cleanupai.dll 10.0.10240.21121 11-Aug-25 21:43 12,800
CntrtextInstaller.dll 10.0.10240.21121 11-Aug-25 21:43 128,000
cmitrust.dll 10.0.10240.21121 11-Aug-25 23:46 289,752
bfsvc.dll 10.0.10240.21121 12-Aug-25 0:12 65,536
timezoneai.dll 10.0.10240.21121 11-Aug-25 21:43 51,200
luainstall.dll 10.0.10240.21121 11-Aug-25 21:43 42,496
fveupdateai.dll 10.0.10240.21121 11-Aug-25 21:43 18,944
appxprovisionpackage.dll 10.0.10240.21121 11-Aug-25 21:54 63,488
grouptrusteeai.dll 10.0.10240.21121 12-Aug-25 0:03 39,360
appxreg.dll 10.0.10240.21121 11-Aug-25 21:43 24,064
sppinst.dll 10.0.10240.21121 11-Aug-25 21:45 647,168
offlinelsa.dll 10.0.10240.21121 11-Aug-25 22:15 100,864
offlinesam.dll 10.0.10240.21121 11-Aug-25 22:16 110,080
cmifw.dll 10.0.10240.21121 11-Aug-25 22:45 80,896
FirewallOfflineAPI.dll 10.0.10240.21121 11-Aug-25 22:45 147,968
NetSetupAI.dll 10.0.10240.21121 11-Aug-25 22:41 79,360
NetSetupEngine.dll 10.0.10240.21121 11-Aug-25 23:55 469,952
ImplatSetup.dll 10.0.10240.21121 11-Aug-25 23:22 54,784
For all supported x64-based versions
File name File version Date Time File size
NetworkBindingEngineTransformer.dll 10.0.10240.21121 11-Aug-25 23:51 304,640
NetSetupApi.dll 10.0.10240.21121 12-Aug-25 0:36 104,920
peerdistai.dll 10.0.10240.21121 11-Aug-25 22:00 30,208
PrintAdvancedInstaller.dll 10.0.10240.21121 11-Aug-25 22:00 98,304
msdtcadvancedinstaller.dll 10.0.10240.21121 11-Aug-25 22:00 58,880
netfxconfig.dll 10.0.10240.21121 11-Aug-25 22:00 22,528
ConfigureIEOptionalComponentsAI.dll 10.0.10240.21121 11-Aug-25 22:00 46,592
IEFileInstallAI.dll 10.0.10240.21121 11-Aug-25 21:55 29,184
servicemodelregai.dll 10.0.10240.21121 11-Aug-25 22:00 80,896
SetIEInstalledDateAI.dll 10.0.10240.21121 11-Aug-25 22:00 16,384
bcdeditai.dll 10.0.10240.21121 11-Aug-25 22:02 283,648
RegisterIEPKeysAI.dll 10.0.10240.21121 11-Aug-25 22:00 16,384
cmipnpinstall.dll 10.0.10240.21121 12-Aug-25 0:24 246,744
FeatureSettingsOverride.dll 10.0.10240.21121 11-Aug-25 23:29 31,744
PrimitiveTransformers.dll 10.0.10240.21121 11-Aug-25 23:31 58,368
WpnDataTransformer.dll 10.0.10240.21121 11-Aug-25 23:27 27,648
AriTransformer.dll 10.0.10240.21121 11-Aug-25 23:27 50,688
mqcmiplugin.dll 10.0.10240.21121 11-Aug-25 23:16 149,504
appserverai.dll 10.0.10240.21121 11-Aug-25 23:14 109,056
RDWebAI.dll 10.0.10240.21121 11-Aug-25 23:14 113,152
tssdisai.dll 10.0.10240.21121 11-Aug-25 23:14 116,224
VmHostAI.dll 10.0.10240.21121 11-Aug-25 23:14 93,696
wdscore.dll 10.0.10240.21121 12-Aug-25 0:22 255,944
drvstore.dll 10.0.10240.21121 12-Aug-25 0:21 851,408
dpx.dll 10.0.10240.21121 11-Aug-25 21:53 498,688
msdelta.dll 10.0.10240.21121 11-Aug-25 21:58 515,072
mspatcha.dll 10.0.10240.21121 11-Aug-25 21:53 46,080
cmiaisupport.dll 10.0.10240.21121 12-Aug-25 0:23 3,171,848
WcmTypes.xsd Not versioned 1-Aug-25 2:32 1,047
CbsMsg.dll 10.0.10240.21121 12-Aug-25 0:21 51,688
CbsCore.dll 10.0.10240.21121 12-Aug-25 0:00 1,970,176
TiWorker.exe 10.0.10240.21121 11-Aug-25 21:52 200,192
TiFileFetcher.exe 10.0.10240.21121 12-Aug-25 0:23 276,984
DrUpdate.dll 10.0.10240.21121 12-Aug-25 0:23 342,008
wrpint.dll 10.0.10240.21121 11-Aug-25 22:02 66,048
wcp.dll 10.0.10240.21121 12-Aug-25 0:01 3,231,232
cmiadapter.dll 10.0.10240.21121 11-Aug-25 21:55 80,384
smiengine.dll 10.0.10240.21121 11-Aug-25 22:00 898,048
smipi.dll 10.0.10240.21121 11-Aug-25 22:00 29,184
poqexec.exe 10.0.10240.21121 11-Aug-25 22:00 141,824
amd64_installed Not versioned 1-Aug-25 2:32 9
GlobalInstallOrder.xml Not versioned 1-Aug-25 2:33 1,249,165
EventsInstaller.dll 10.0.10240.21121 11-Aug-25 23:42 214,016
mofinstall.dll 10.0.10240.21121 11-Aug-25 22:17 67,584
esscli.dll 10.0.10240.21121 11-Aug-25 22:17 402,432
mofd.dll 10.0.10240.21121 11-Aug-25 22:18 248,320
repdrvfs.dll 10.0.10240.21121 11-Aug-25 22:17 350,208
fastprox.dll 10.0.10240.21121 11-Aug-25 22:19 854,528
wbemcomn.dll 10.0.10240.21121 11-Aug-25 22:17 449,024
wbemcore.dll 10.0.10240.21121 11-Aug-25 22:17 1,147,392
wmiutils.dll 10.0.10240.21121 11-Aug-25 22:18 112,128
wbemprox.dll 10.0.10240.21121 11-Aug-25 22:19 36,864
wmicmiplugin.dll 10.0.10240.21121 11-Aug-25 22:15 342,528
httpai.dll 10.0.10240.21121 11-Aug-25 22:00 19,968
securebootai.dll 10.0.10240.21121 12-Aug-25 0:53 178,176
winsockai.dll 10.0.10240.21121 11-Aug-25 22:00 73,216
ws2_helper.dll 10.0.10240.21121 11-Aug-25 22:00 83,456
cleanupai.dll 10.0.10240.21121 11-Aug-25 22:00 15,360
CntrtextInstaller.dll 10.0.10240.21121 11-Aug-25 21:59 153,600
cmitrust.dll 10.0.10240.21121 12-Aug-25 0:25 423,432
bfsvc.dll 10.0.10240.21121 12-Aug-25 0:53 76,288
timezoneai.dll 10.0.10240.21121 11-Aug-25 22:00 67,584
luainstall.dll 10.0.10240.21121 11-Aug-25 21:53 52,736
fveupdateai.dll 10.0.10240.21121 11-Aug-25 21:55 24,064
appxprovisionpackage.dll 10.0.10240.21121 11-Aug-25 23:27 74,752
grouptrusteeai.dll 10.0.10240.21121 12-Aug-25 0:43 45,016
appxreg.dll 10.0.10240.21121 11-Aug-25 21:51 30,208
sppinst.dll 10.0.10240.21121 11-Aug-25 22:25 769,024
offlinelsa.dll 10.0.10240.21121 11-Aug-25 23:44 114,688
offlinesam.dll 10.0.10240.21121 11-Aug-25 23:44 137,728
cmifw.dll 10.0.10240.21121 11-Aug-25 23:05 96,768
FirewallOfflineAPI.dll 10.0.10240.21121 11-Aug-25 23:06 173,568
NetSetupAI.dll 10.0.10240.21121 11-Aug-25 22:59 105,472
NetSetupEngine.dll 10.0.10240.21121 12-Aug-25 0:36 661,480
ImplatSetup.dll 10.0.10240.21121 11-Aug-25 23:51 78,848
NetworkBindingEngineTransformer.dll 10.0.10240.21121 11-Aug-25 23:22 201,216
NetSetupApi.dll 10.0.10240.21121 11-Aug-25 23:55 79,320
peerdistai.dll 10.0.10240.21121 11-Aug-25 21:58 24,064
PrintAdvancedInstaller.dll 10.0.10240.21121 11-Aug-25 21:58 84,992
msdtcadvancedinstaller.dll 10.0.10240.21121 11-Aug-25 21:58 47,104
netfxconfig.dll 10.0.10240.21121 11-Aug-25 21:58 18,944
ConfigureIEOptionalComponentsAI.dll 10.0.10240.21121 11-Aug-25 21:58 38,400
IEFileInstallAI.dll 10.0.10240.21121 11-Aug-25 21:54 27,136
servicemodelregai.dll 10.0.10240.21121 11-Aug-25 21:58 64,512
SetIEInstalledDateAI.dll 10.0.10240.21121 11-Aug-25 21:58 14,336
bcdeditai.dll 10.0.10240.21121 11-Aug-25 21:59 259,584
RegisterIEPKeysAI.dll 10.0.10240.21121 11-Aug-25 21:58 13,824
cmipnpinstall.dll 10.0.10240.21121 11-Aug-25 23:47 194,496
FeatureSettingsOverride.dll 10.0.10240.21121 11-Aug-25 23:05 25,088
PrimitiveTransformers.dll 10.0.10240.21121 11-Aug-25 22:01 43,008
WpnDataTransformer.dll 10.0.10240.21121 11-Aug-25 21:54 20,992
AriTransformer.dll 10.0.10240.21121 11-Aug-25 21:54 37,376
appserverai.dll 10.0.10240.21121 11-Aug-25 22:53 85,504
RDWebAI.dll 10.0.10240.21121 11-Aug-25 22:53 95,232
tssdisai.dll 10.0.10240.21121 11-Aug-25 22:53 94,208
VmHostAI.dll 10.0.10240.21121 11-Aug-25 22:53 74,752
wdscore.dll 10.0.10240.21121 11-Aug-25 23:46 208,344
drvstore.dll 10.0.10240.21121 11-Aug-25 23:45 701,400
dpx.dll 10.0.10240.21121 11-Aug-25 21:52 371,712
msdelta.dll 10.0.10240.21121 11-Aug-25 21:43 410,624
mspatcha.dll 10.0.10240.21121 11-Aug-25 21:52 36,864
cmiaisupport.dll 10.0.10240.21121 11-Aug-25 23:45 2,169,808
WcmTypes.xsd Not versioned 1-Aug-25 2:33 1,047
CbsMsg.dll 10.0.10240.21121 11-Aug-25 23:45 50,624
CbsCore.dll 10.0.10240.21121 11-Aug-25 23:31 1,779,712
TiWorker.exe 10.0.10240.21121 11-Aug-25 21:52 197,120
TiFileFetcher.exe 10.0.10240.21121 11-Aug-25 23:45 234,456
DrUpdate.dll 10.0.10240.21121 11-Aug-25 23:45 284,632
wrpint.dll 10.0.10240.21121 11-Aug-25 21:59 55,808
wcp.dll 10.0.10240.21121 11-Aug-25 23:31 2,718,208
cmiadapter.dll 10.0.10240.21121 11-Aug-25 21:43 64,512
smiengine.dll 10.0.10240.21121 11-Aug-25 21:58 730,112
smipi.dll 10.0.10240.21121 11-Aug-25 21:58 23,552
poqexec.exe 10.0.10240.21121 11-Aug-25 21:58 118,272
x86_installed Not versioned 1-Aug-25 2:32 9
EventsInstaller.dll 10.0.10240.21121 11-Aug-25 22:09 166,912
mofinstall.dll 10.0.10240.21121 11-Aug-25 21:45 63,488
esscli.dll 10.0.10240.21121 11-Aug-25 21:45 299,008
mofd.dll 10.0.10240.21121 11-Aug-25 21:45 203,264
repdrvfs.dll 10.0.10240.21121 11-Aug-25 21:45 277,504
fastprox.dll 10.0.10240.21121 11-Aug-25 21:45 669,696
wbemcomn.dll 10.0.10240.21121 11-Aug-25 21:45 385,536
wbemcore.dll 10.0.10240.21121 11-Aug-25 21:45 922,112
wmiutils.dll 10.0.10240.21121 11-Aug-25 21:45 91,136
wbemprox.dll 10.0.10240.21121 11-Aug-25 21:45 30,208
wmicmiplugin.dll 10.0.10240.21121 11-Aug-25 21:45 272,896
httpai.dll 10.0.10240.21121 11-Aug-25 21:43 16,896
securebootai.dll 10.0.10240.21121 12-Aug-25 0:12 157,184
winsockai.dll 10.0.10240.21121 11-Aug-25 21:43 65,536
ws2_helper.dll 10.0.10240.21121 11-Aug-25 21:43 69,632
cleanupai.dll 10.0.10240.21121 11-Aug-25 21:43 12,800
CntrtextInstaller.dll 10.0.10240.21121 11-Aug-25 21:43 128,000
cmitrust.dll 10.0.10240.21121 11-Aug-25 23:46 289,752
bfsvc.dll 10.0.10240.21121 12-Aug-25 0:12 65,536
timezoneai.dll 10.0.10240.21121 11-Aug-25 21:43 51,200
luainstall.dll 10.0.10240.21121 11-Aug-25 21:43 42,496
fveupdateai.dll 10.0.10240.21121 11-Aug-25 21:43 18,944
appxprovisionpackage.dll 10.0.10240.21121 11-Aug-25 21:54 63,488
grouptrusteeai.dll 10.0.10240.21121 12-Aug-25 0:03 39,360
appxreg.dll 10.0.10240.21121 11-Aug-25 21:43 24,064
sppinst.dll 10.0.10240.21121 11-Aug-25 21:45 647,168
offlinelsa.dll 10.0.10240.21121 11-Aug-25 22:15 100,864
offlinesam.dll 10.0.10240.21121 11-Aug-25 22:16 110,080
cmifw.dll 10.0.10240.21121 11-Aug-25 22:45 80,896
FirewallOfflineAPI.dll 10.0.10240.21121 11-Aug-25 22:45 147,968
NetSetupAI.dll 10.0.10240.21121 11-Aug-25 22:41 79,360
NetSetupEngine.dll 10.0.10240.21121 11-Aug-25 23:55 469,952
ImplatSetup.dll 10.0.10240.21121 11-Aug-25 23:22 54,784

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