This update applies to the following:
-
Windows Server 2012 for x86-based systems
-
Windows Server 2012 for x64-based systems
-
Windows Server 2012 (Server Core installation)
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 KB4566426.
File Information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
|
File name |
File version |
Date |
Time |
File size |
|
CbsApi.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:18 |
20,480 |
|
mofinstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
61,440 |
|
esscli.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
283,648 |
|
mofd.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
196,608 |
|
repdrvfs.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
274,944 |
|
fastprox.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
629,248 |
|
wbemcomn.dll |
6.2.9200.21193 |
8-Aug-2014 |
23:36 |
380,928 |
|
wbemcore.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
924,672 |
|
wmiutils.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
88,576 |
|
wbemprox.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
28,160 |
|
wmicmiplugin.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
396,288 |
|
sppinst.dll |
6.2.9200.21193 |
8-Aug-2014 |
23:36 |
518,656 |
|
cmifw.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
73,728 |
|
FirewallOfflineAPI.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:18 |
181,760 |
|
securebootai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
39,936 |
|
winsockai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
64,512 |
|
ws2_helper.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:20 |
48,128 |
|
httpai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
53,760 |
|
peerdistai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
66,048 |
|
PrintAdvancedInstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
72,704 |
|
msdtcadvancedinstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
200,704 |
|
cleanupai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
36,352 |
|
wdscore.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
225,792 |
|
CntrtextInstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
139,776 |
|
drvstore.dll |
6.2.9200.23060 |
14-May-2020 |
21:38 |
549,376 |
|
dpx.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
250,368 |
|
msdelta.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
310,784 |
|
mspatcha.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
38,912 |
|
PkgMgr.exe |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
194,048 |
|
cmiv2.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
2,165,248 |
|
cmitrust.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
289,792 |
|
WcmTypes.xsd |
Not versioned |
2-Jun-2012 |
7:54 |
1,047 |
|
CbsMsg.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:18 |
41,472 |
|
CbsCore.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
1,008,128 |
|
TiWorker.exe |
6.2.9200.21193 |
8-Aug-2014 |
23:37 |
186,880 |
|
TiFileFetcher.exe |
6.2.9200.23060 |
14-May-2020 |
21:38 |
380,928 |
|
DrUpdate.dll |
6.2.9200.23060 |
14-May-2020 |
21:38 |
193,024 |
|
wrpint.dll |
6.2.9200.21193 |
8-Aug-2014 |
23:36 |
48,640 |
|
wcp.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
2,187,776 |
|
cmiadapter.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
104,448 |
|
smiengine.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
700,928 |
|
smipi.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
102,400 |
|
poqexec.exe |
6.2.9200.22903 |
11-Oct-2019 |
8:17 |
132,608 |
|
x86_installed |
Not versioned |
2-Jun-2012 |
7:32 |
9 |
|
cmipnpinstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
191,488 |
|
bfsvc.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
91,136 |
|
netfxconfig.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
40,448 |
|
timezoneai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
67,584 |
|
ConfigureIEOptionalComponentsAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
69,632 |
|
IEFileInstallAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
59,904 |
|
GlobalInstallOrder.xml |
Not versioned |
2-Jun-2012 |
13:26 |
2,240,509 |
|
servicemodelregai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
96,768 |
|
SetIEInstalledDateAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
41,984 |
|
ceipfwdai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
180,736 |
|
luainstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
39,424 |
|
bcdeditai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
285,184 |
|
appxreg.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
22,016 |
|
fveupdateai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
56,320 |
|
RegisterIEPKeysAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
24,576 |
|
TrustedInstaller.exe |
6.2.9200.21193 |
8-Aug-2014 |
23:37 |
85,504 |
|
File name |
File version |
Date |
Time |
File size |
|
CbsApi.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:05 |
23,040 |
|
mofinstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
71,168 |
|
esscli.dll |
6.2.9200.22865 |
17-Aug-2019 |
10:10 |
385,024 |
|
mofd.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
259,584 |
|
repdrvfs.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:07 |
366,080 |
|
fastprox.dll |
6.2.9200.22865 |
17-Aug-2019 |
10:10 |
816,640 |
|
wbemcomn.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
462,336 |
|
wbemcore.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
1,207,296 |
|
wmiutils.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:07 |
115,712 |
|
wbemprox.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:07 |
35,840 |
|
wmicmiplugin.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
556,544 |
|
sppinst.dll |
6.2.9200.21193 |
8-Aug-2014 |
23:56 |
641,024 |
|
cmifw.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
89,088 |
|
FirewallOfflineAPI.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:05 |
211,968 |
|
appserverai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
135,680 |
|
RDWebAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
126,976 |
|
tssdisai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
144,896 |
|
VmHostAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
122,880 |
|
securebootai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
36,352 |
|
winsockai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
60,928 |
|
ws2_helper.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:08 |
59,904 |
|
httpai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
51,712 |
|
peerdistai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
67,584 |
|
PrintAdvancedInstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
71,168 |
|
msdtcadvancedinstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
239,616 |
|
cleanupai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
31,744 |
|
wdscore.dll |
6.2.9200.22865 |
17-Aug-2019 |
10:10 |
272,384 |
|
CntrtextInstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
165,376 |
|
drvstore.dll |
6.2.9200.22865 |
17-Aug-2019 |
10:10 |
703,488 |
|
dpx.dll |
6.2.9200.23060 |
14-May-2020 |
22:34 |
362,496 |
|
msdelta.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
414,208 |
|
mspatcha.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:07 |
45,056 |
|
PkgMgr.exe |
6.2.9200.22865 |
17-Aug-2019 |
10:10 |
196,096 |
|
cmiv2.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
3,305,984 |
|
cmitrust.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
407,552 |
|
WcmTypes.xsd |
Not versioned |
2-Jun-2012 |
7:54 |
1,047 |
|
CbsMsg.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:05 |
41,472 |
|
CbsCore.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
1,163,776 |
|
TiWorker.exe |
6.2.9200.21193 |
8-Aug-2014 |
23:57 |
189,440 |
|
TiFileFetcher.exe |
6.2.9200.23060 |
14-May-2020 |
22:35 |
460,800 |
|
DrUpdate.dll |
6.2.9200.22865 |
17-Aug-2019 |
10:10 |
244,224 |
|
wrpint.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:08 |
60,928 |
|
wcp.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
2,835,456 |
|
cmiadapter.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
116,224 |
|
smiengine.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
895,488 |
|
smipi.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
110,592 |
|
poqexec.exe |
6.2.9200.23060 |
14-May-2020 |
22:35 |
148,480 |
|
amd64_installed |
Not versioned |
2-Jun-2012 |
7:32 |
9 |
|
cmipnpinstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
250,880 |
|
bfsvc.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
91,648 |
|
netfxconfig.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
34,304 |
|
timezoneai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
75,264 |
|
ConfigureIEOptionalComponentsAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
73,216 |
|
IEFileInstallAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
58,880 |
|
GlobalInstallOrder.xml |
Not versioned |
2-Jun-2012 |
13:26 |
2,240,509 |
|
servicemodelregai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
116,224 |
|
SetIEInstalledDateAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
42,496 |
|
ceipfwdai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
212,480 |
|
luainstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
50,176 |
|
bcdeditai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
300,032 |
|
appxreg.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
15,360 |
|
fveupdateai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
56,832 |
|
RegisterIEPKeysAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:57 |
19,456 |
|
TrustedInstaller.exe |
6.2.9200.21193 |
8-Aug-2014 |
23:57 |
98,304 |
|
mofinstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
61,440 |
|
esscli.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
283,648 |
|
mofd.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
196,608 |
|
repdrvfs.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
274,944 |
|
fastprox.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
629,248 |
|
wbemcomn.dll |
6.2.9200.21193 |
8-Aug-2014 |
23:36 |
380,928 |
|
wbemcore.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
924,672 |
|
wmiutils.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
88,576 |
|
wbemprox.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
28,160 |
|
wmicmiplugin.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
396,288 |
|
sppinst.dll |
6.2.9200.21193 |
8-Aug-2014 |
23:36 |
518,656 |
|
cmifw.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
73,728 |
|
FirewallOfflineAPI.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:18 |
181,760 |
|
securebootai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
39,936 |
|
winsockai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
64,512 |
|
ws2_helper.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:20 |
48,128 |
|
httpai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
53,760 |
|
peerdistai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
66,048 |
|
PrintAdvancedInstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
72,704 |
|
msdtcadvancedinstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
200,704 |
|
cleanupai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
36,352 |
|
wdscore.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
225,792 |
|
CntrtextInstaller.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
139,776 |
|
drvstore.dll |
6.2.9200.23060 |
14-May-2020 |
21:38 |
549,376 |
|
dpx.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
250,368 |
|
msdelta.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
310,784 |
|
mspatcha.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:19 |
38,912 |
|
PkgMgr.exe |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
194,048 |
|
cmiv2.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
2,165,248 |
|
cmitrust.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
289,792 |
|
WcmTypes.xsd |
Not versioned |
2-Jun-2012 |
7:54 |
1,047 |
|
CbsMsg.dll |
6.2.9200.16384 |
25-Jul-2012 |
20:18 |
41,472 |
|
CbsCore.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
1,008,128 |
|
TiWorker.exe |
6.2.9200.21193 |
8-Aug-2014 |
23:37 |
186,880 |
|
TiFileFetcher.exe |
6.2.9200.23060 |
14-May-2020 |
21:38 |
380,928 |
|
DrUpdate.dll |
6.2.9200.23060 |
14-May-2020 |
21:38 |
193,024 |
|
wrpint.dll |
6.2.9200.21193 |
8-Aug-2014 |
23:36 |
48,640 |
|
wcp.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
2,187,776 |
|
cmiadapter.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
104,448 |
|
smiengine.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
700,928 |
|
smipi.dll |
6.2.9200.22865 |
17-Aug-2019 |
9:15 |
102,400 |
|
poqexec.exe |
6.2.9200.22903 |
11-Oct-2019 |
8:17 |
132,608 |
|
x86_installed |
Not versioned |
2-Jun-2012 |
7:32 |
9 |
|
cmipnpinstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
191,488 |
|
bfsvc.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
91,136 |
|
netfxconfig.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
40,448 |
|
timezoneai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
67,584 |
|
ConfigureIEOptionalComponentsAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
69,632 |
|
IEFileInstallAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
59,904 |
|
GlobalInstallOrder.xml |
Not versioned |
2-Jun-2012 |
13:26 |
2,240,509 |
|
servicemodelregai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
96,768 |
|
SetIEInstalledDateAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
41,984 |
|
ceipfwdai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
180,736 |
|
luainstall.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
39,424 |
|
bcdeditai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
285,184 |
|
appxreg.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
22,016 |
|
fveupdateai.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
56,320 |
|
RegisterIEPKeysAI.dll |
6.2.9200.23320 |
4-Mar-2021 |
15:01 |
24,576 |
References
For information on SSUs, see the following articles:
Learn about the terminology that Microsoft uses to describe software updates.
