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Summary

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.

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. For general information on SSUs, please see the following articles:

Known issues

Restart stuck on "Stage 2 of 2" or "Stage 3 of 3"

After you install a servicing stack update together with other updates, a restart may be required to complete the installation. During this restart, you may find yourself stuck at a particular stage and see a "Stage 2 of 2" or "Stage 3 of 3" message.

If you experience this issue, press Ctrl+Alt+Delete to continue to log on. This should occur only one time and does not prevent updates from installing successfully.

Note In managed environments, such as by using Windows Server Update Services (WSUS), you can avoid this issue by deploying this update as a standalone update.

Restart stuck on "Stage 2 of 2" or "Stage 3 of 3"

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 available through Windows Server Update Services (WSUS).

Prerequisites 

You must have update KB 4490628 installed before you apply this update. 

Restart information 

You don't have to restart your computer after you apply this update.  

Update replacement information 

This update does not replace any previously released update.

File Information

File information

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

Windows 7 and Windows Server 2008 R2 file information

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

File verification

File hash information

File name

SHA1 hash

SHA256 hash

Windows6.1-KB4516655-x86.msu

47655670362E023AA10AB856A3BDA90AABEACFE6

5C0083227E0EF76DE38607EFAF3AC94904F435FE713EFDBECA9EF6F85B660F83

Windows6.1-KB4516655-ia64.msu

9711EC3BA81EF12C1BCD19BAE75B626AD3CDFBD3

749B037C700DE9CEB70D63850D5D0B5602B9E1FF9137A3B03203FF23DCEB2E3A

Windows6.1-KB4516655-x64.msu

8ACF6B3AEB8EBB79973F034C39A9887C9F7DF812

BD9E58893212A202EEE359FBAC111AB6EA783E60573843C8F40CEA6F980724F4

For all supported x86-based versions

File name

File version

File size

Date

Time

Apds.dll

6.1.7601.24516

1,798,144

16-Aug-2019

01:30

Apircl.dll

6.1.7601.24516

223,744

16-Aug-2019

01:30

Apss.dll

6.1.7601.24516

201,216

16-Aug-2019

01:30

Cbscore.dll

6.1.7601.24516

845,824

16-Aug-2019

01:30

Cbsmsg.dll

6.1.7601.24516

28,672

16-Aug-2019

01:02

Cmiadapter.dll

6.1.7601.24516

120,320

16-Aug-2019

01:30

Cmitrust.dll

6.1.7601.24516

296,960

16-Aug-2019

01:30

Cmiv2.dll

6.1.7601.24516

2,040,832

16-Aug-2019

01:30

Cntrtextinstaller.dll

6.1.7601.24516

143,872

16-Aug-2019

01:30

Dpx.dll

6.1.7601.24516

257,024

16-Aug-2019

01:30

Drupdate.dll

6.1.7601.24516

174,080

16-Aug-2019

01:30

Drvstore.dll

6.1.7601.24516

323,584

16-Aug-2019

01:30

Esscli.dll

6.1.7601.24516

266,240

16-Aug-2019

01:30

Extendedsecurityupdatesai.dll

6.1.7601.24516

78,336

16-Aug-2019

01:02

Fastprox.dll

6.1.7601.24516

606,720

16-Aug-2019

01:30

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24516

105,472

16-Aug-2019

01:30

Locdrv.dll

6.1.7601.24516

229,888

16-Aug-2019

01:30

Mofd.dll

6.1.7601.24516

192,000

16-Aug-2019

01:30

Mofinstall.dll

6.1.7601.24516

58,880

16-Aug-2019

01:30

Msdelta.dll

6.1.7601.24516

305,664

16-Aug-2019

01:30

Mspatcha.dll

6.1.7601.24516

35,328

16-Aug-2019

01:30

Oemhelpins.dll

6.1.7601.24516

151,040

16-Aug-2019

01:30

Pkgmgr.exe

6.1.7601.24516

209,920

16-Aug-2019

01:02

Poqexec.exe

6.1.7601.24516

123,904

16-Aug-2019

01:02

Repdrvfs.dll

6.1.7601.24516

302,080

16-Aug-2019

01:30

Smiengine.dll

6.1.7601.24516

697,344

16-Aug-2019

01:30

Smipi.dll

6.1.7601.24516

98,816

16-Aug-2019

01:30

Svcini.exe

6.1.7601.24516

16,384

16-Aug-2019

01:02

Wbemcomn.dll

6.1.7601.24516

363,520

16-Aug-2019

01:30

Wbemcore.dll

6.1.7601.24516

780,288

16-Aug-2019

01:30

Wbemprox.dll

6.1.7601.24516

29,184

16-Aug-2019

01:30

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24516

1,913,344

16-Aug-2019

01:30

Wdscore.dll

6.1.7601.24516

190,464

16-Aug-2019

01:30

Wmicmiplugin.dll

6.1.7601.24516

351,744

16-Aug-2019

01:30

Wmiutils.dll

6.1.7601.24516

85,504

16-Aug-2019

01:30

Wrpint.dll

6.1.7601.24516

54,272

16-Aug-2019

01:00

Xmllite.dll

1.3.1001.0

180,736

16-Aug-2019

01:30

For all supported ia64-based versions

File name

File version

File size

Date

Time

Apds.dll

6.1.7601.24516

3,342,336

16-Aug-2019

01:10

Apircl.dll

6.1.7601.24516

752,128

16-Aug-2019

01:10

Apss.dll

6.1.7601.24516

560,128

16-Aug-2019

01:10

Cbscore.dll

6.1.7601.24516

1,837,056

16-Aug-2019

01:10

Cbsmsg.dll

6.1.7601.24516

40,448

16-Aug-2019

01:10

Cmiadapter.dll

6.1.7601.24516

284,672

16-Aug-2019

01:10

Cmitrust.dll

6.1.7601.24516

987,136

16-Aug-2019

01:10

Cmiv2.dll

6.1.7601.24516

6,536,192

16-Aug-2019

01:10

Cntrtextinstaller.dll

6.1.7601.24516

357,376

16-Aug-2019

01:10

Dpx.dll

6.1.7601.24516

770,560

16-Aug-2019

01:10

Drupdate.dll

6.1.7601.24516

390,656

16-Aug-2019

01:10

Drvstore.dll

6.1.7601.24516

742,912

16-Aug-2019

01:10

Esscli.dll

6.1.7601.24516

1,011,200

16-Aug-2019

01:10

Extendedsecurityupdatesai.dll

6.1.7601.24516

194,560

16-Aug-2019

00:45

Fastprox.dll

6.1.7601.24516

2,100,224

16-Aug-2019

01:10

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24516

187,904

16-Aug-2019

01:10

Locdrv.dll

6.1.7601.24516

803,328

16-Aug-2019

01:10

Mofd.dll

6.1.7601.24516

643,584

16-Aug-2019

01:10

Mofinstall.dll

6.1.7601.24516

193,024

16-Aug-2019

01:10

Msdelta.dll

6.1.7601.24516

890,880

16-Aug-2019

01:10

Mspatcha.dll

6.1.7601.24516

111,104

16-Aug-2019

01:10

Oemhelpins.dll

6.1.7601.24516

420,352

16-Aug-2019

01:10

Pkgmgr.exe

6.1.7601.24516

334,848

16-Aug-2019

00:46

Poqexec.exe

6.1.7601.24516

272,384

16-Aug-2019

00:45

Repdrvfs.dll

6.1.7601.24516

1,067,520

16-Aug-2019

01:10

Smiengine.dll

6.1.7601.24516

1,953,792

16-Aug-2019

01:10

Smipi.dll

6.1.7601.24516

186,880

16-Aug-2019

01:10

Svcini.exe

6.1.7601.24516

41,984

16-Aug-2019

00:45

Wbemcomn.dll

6.1.7601.24516

1,005,056

16-Aug-2019

01:10

Wbemcore.dll

6.1.7601.24516

2,959,872

16-Aug-2019

01:10

Wbemprox.dll

6.1.7601.24516

102,912

16-Aug-2019

01:10

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24516

5,137,920

16-Aug-2019

01:10

Wdscore.dll

6.1.7601.24516

600,576

16-Aug-2019

01:10

Wmicmiplugin.dll

6.1.7601.24516

940,544

16-Aug-2019

01:10

Wmiutils.dll

6.1.7601.24516

273,408

16-Aug-2019

01:10

Wrpint.dll

6.1.7601.24516

128,000

16-Aug-2019

01:10

Xmllite.dll

1.3.1001.0

449,024

16-Aug-2019

01:10

Apds.dll

6.1.7601.24516

1,798,144

16-Aug-2019

01:30

Apircl.dll

6.1.7601.24516

223,744

16-Aug-2019

01:30

Apss.dll

6.1.7601.24516

201,216

16-Aug-2019

01:30

Cbscore.dll

6.1.7601.24516

845,824

16-Aug-2019

01:30

Cbsmsg.dll

6.1.7601.24516

28,672

16-Aug-2019

01:02

Cmiadapter.dll

6.1.7601.24516

120,320

16-Aug-2019

01:30

Cmitrust.dll

6.1.7601.24516

296,960

16-Aug-2019

01:30

Cmiv2.dll

6.1.7601.24516

2,040,832

16-Aug-2019

01:30

Cntrtextinstaller.dll

6.1.7601.24516

143,872

16-Aug-2019

01:30

Dpx.dll

6.1.7601.24516

257,024

16-Aug-2019

01:30

Drupdate.dll

6.1.7601.24516

174,080

16-Aug-2019

01:30

Drvstore.dll

6.1.7601.24516

323,584

16-Aug-2019

01:30

Esscli.dll

6.1.7601.24516

266,240

16-Aug-2019

01:30

Extendedsecurityupdatesai.dll

6.1.7601.24516

78,336

16-Aug-2019

01:02

Fastprox.dll

6.1.7601.24516

606,720

16-Aug-2019

01:30

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24516

105,472

16-Aug-2019

01:30

Locdrv.dll

6.1.7601.24516

229,888

16-Aug-2019

01:30

Mofd.dll

6.1.7601.24516

192,000

16-Aug-2019

01:30

Mofinstall.dll

6.1.7601.24516

58,880

16-Aug-2019

01:30

Msdelta.dll

6.1.7601.24516

305,664

16-Aug-2019

01:30

Mspatcha.dll

6.1.7601.24516

35,328

16-Aug-2019

01:30

Oemhelpins.dll

6.1.7601.24516

151,040

16-Aug-2019

01:30

Pkgmgr.exe

6.1.7601.24516

209,920

16-Aug-2019

01:02

Poqexec.exe

6.1.7601.24516

123,904

16-Aug-2019

01:02

Repdrvfs.dll

6.1.7601.24516

302,080

16-Aug-2019

01:30

Smiengine.dll

6.1.7601.24516

697,344

16-Aug-2019

01:30

Smipi.dll

6.1.7601.24516

98,816

16-Aug-2019

01:30

Svcini.exe

6.1.7601.24516

16,384

16-Aug-2019

01:02

Wbemcomn.dll

6.1.7601.24516

363,520

16-Aug-2019

01:30

Wbemcore.dll

6.1.7601.24516

780,288

16-Aug-2019

01:30

Wbemprox.dll

6.1.7601.24516

29,184

16-Aug-2019

01:30

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24516

1,913,344

16-Aug-2019

01:30

Wdscore.dll

6.1.7601.24516

190,464

16-Aug-2019

01:30

Wmicmiplugin.dll

6.1.7601.24516

351,744

16-Aug-2019

01:30

Wmiutils.dll

6.1.7601.24516

85,504

16-Aug-2019

01:30

Wrpint.dll

6.1.7601.24516

54,272

16-Aug-2019

01:00

Xmllite.dll

1.3.1001.0

180,736

16-Aug-2019

01:30

For all supported x64-based versions

File name

File version

File size

Date

Time

Apds.dll

6.1.7601.24516

2,172,928

16-Aug-2019

01:29

Apircl.dll

6.1.7601.24516

276,480

16-Aug-2019

01:29

Apss.dll

6.1.7601.24516

235,520

16-Aug-2019

01:29

Cbscore.dll

6.1.7601.24516

976,896

16-Aug-2019

01:29

Cbsmsg.dll

6.1.7601.24516

28,672

16-Aug-2019

01:29

Cmiadapter.dll

6.1.7601.24516

125,952

16-Aug-2019

01:29

Cmitrust.dll

6.1.7601.24516

479,232

16-Aug-2019

01:29

Cmiv2.dll

6.1.7601.24516

3,739,136

16-Aug-2019

01:29

Cntrtextinstaller.dll

6.1.7601.24516

170,496

16-Aug-2019

01:29

Dpx.dll

6.1.7601.24516

399,872

16-Aug-2019

01:29

Drupdate.dll

6.1.7601.24516

204,288

16-Aug-2019

01:29

Drvstore.dll

6.1.7601.24516

423,936

16-Aug-2019

01:29

Esscli.dll

6.1.7601.24516

440,320

16-Aug-2019

01:29

Extendedsecurityupdatesai.dll

6.1.7601.24516

87,552

16-Aug-2019

00:56

Fastprox.dll

6.1.7601.24516

909,824

16-Aug-2019

01:29

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24516

142,336

16-Aug-2019

01:29

Locdrv.dll

6.1.7601.24516

370,176

16-Aug-2019

01:29

Mofd.dll

6.1.7601.24516

278,528

16-Aug-2019

01:29

Mofinstall.dll

6.1.7601.24516

76,288

16-Aug-2019

01:29

Msdelta.dll

6.1.7601.24516

452,096

16-Aug-2019

01:29

Mspatcha.dll

6.1.7601.24516

46,592

16-Aug-2019

01:29

Oemhelpins.dll

6.1.7601.24516

222,208

16-Aug-2019

01:29

Pkgmgr.exe

6.1.7601.24516

199,168

16-Aug-2019

00:56

Poqexec.exe

6.1.7601.24516

142,336

16-Aug-2019

00:56

Repdrvfs.dll

6.1.7601.24516

454,144

16-Aug-2019

01:29

Smiengine.dll

6.1.7601.24516

933,376

16-Aug-2019

01:29

Smipi.dll

6.1.7601.24516

104,448

16-Aug-2019

01:29

Svcini.exe

6.1.7601.24516

17,920

16-Aug-2019

00:56

Wbemcomn.dll

6.1.7601.24516

529,920

16-Aug-2019

01:29

Wbemcore.dll

6.1.7601.24516

1,225,216

16-Aug-2019

01:29

Wbemprox.dll

6.1.7601.24516

43,520

16-Aug-2019

01:29

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:57

Wcp.dll

6.1.7601.24516

2,762,752

16-Aug-2019

01:29

Wdscore.dll

6.1.7601.24516

271,872

16-Aug-2019

01:29

Wmicmiplugin.dll

6.1.7601.24516

525,824

16-Aug-2019

01:29

Wmiutils.dll

6.1.7601.24516

137,216

16-Aug-2019

01:29

Wrpint.dll

6.1.7601.24516

60,928

16-Aug-2019

01:29

Xmllite.dll

1.3.1001.0

198,656

16-Aug-2019

01:29

Apds.dll

6.1.7601.24516

1,798,144

16-Aug-2019

01:30

Apircl.dll

6.1.7601.24516

223,744

16-Aug-2019

01:30

Apss.dll

6.1.7601.24516

201,216

16-Aug-2019

01:30

Cbscore.dll

6.1.7601.24516

845,824

16-Aug-2019

01:30

Cbsmsg.dll

6.1.7601.24516

28,672

16-Aug-2019

01:02

Cmiadapter.dll

6.1.7601.24516

120,320

16-Aug-2019

01:30

Cmitrust.dll

6.1.7601.24516

296,960

16-Aug-2019

01:30

Cmiv2.dll

6.1.7601.24516

2,040,832

16-Aug-2019

01:30

Cntrtextinstaller.dll

6.1.7601.24516

143,872

16-Aug-2019

01:30

Dpx.dll

6.1.7601.24516

257,024

16-Aug-2019

01:30

Drupdate.dll

6.1.7601.24516

174,080

16-Aug-2019

01:30

Drvstore.dll

6.1.7601.24516

323,584

16-Aug-2019

01:30

Esscli.dll

6.1.7601.24516

266,240

16-Aug-2019

01:30

Extendedsecurityupdatesai.dll

6.1.7601.24516

78,336

16-Aug-2019

01:02

Fastprox.dll

6.1.7601.24516

606,720

16-Aug-2019

01:30

Globalinstallorder.xml

Not applicable

1,973,556

18-Nov-2018

02:41

Helpcins.dll

6.1.7601.24516

105,472

16-Aug-2019

01:30

Locdrv.dll

6.1.7601.24516

229,888

16-Aug-2019

01:30

Mofd.dll

6.1.7601.24516

192,000

16-Aug-2019

01:30

Mofinstall.dll

6.1.7601.24516

58,880

16-Aug-2019

01:30

Msdelta.dll

6.1.7601.24516

305,664

16-Aug-2019

01:30

Mspatcha.dll

6.1.7601.24516

35,328

16-Aug-2019

01:30

Oemhelpins.dll

6.1.7601.24516

151,040

16-Aug-2019

01:30

Pkgmgr.exe

6.1.7601.24516

209,920

16-Aug-2019

01:02

Poqexec.exe

6.1.7601.24516

123,904

16-Aug-2019

01:02

Repdrvfs.dll

6.1.7601.24516

302,080

16-Aug-2019

01:30

Smiengine.dll

6.1.7601.24516

697,344

16-Aug-2019

01:30

Smipi.dll

6.1.7601.24516

98,816

16-Aug-2019

01:30

Svcini.exe

6.1.7601.24516

16,384

16-Aug-2019

01:02

Wbemcomn.dll

6.1.7601.24516

363,520

16-Aug-2019

01:30

Wbemcore.dll

6.1.7601.24516

780,288

16-Aug-2019

01:30

Wbemprox.dll

6.1.7601.24516

29,184

16-Aug-2019

01:30

Wcmtypes.xsd

Not applicable

1,047

18-Nov-2018

02:59

Wcp.dll

6.1.7601.24516

1,913,344

16-Aug-2019

01:30

Wdscore.dll

6.1.7601.24516

190,464

16-Aug-2019

01:30

Wmicmiplugin.dll

6.1.7601.24516

351,744

16-Aug-2019

01:30

Wmiutils.dll

6.1.7601.24516

85,504

16-Aug-2019

01:30

Wrpint.dll

6.1.7601.24516

54,272

16-Aug-2019

01:00

Xmllite.dll

1.3.1001.0

180,736

16-Aug-2019

01:30

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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