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Applies to:

Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2

IMPORTANT Verify that you have installed the required updates listed in the How to get this update section before installing this update. 

IMPORTANT Some customers who use Windows Server 2008 R2 SP1 and have activated their ESU multiple activation key (MAK) add-on before installing the January 14, 2020 updates might need to re-activate their key. Re-activation on the affected devices should only be required once.  For information on activation, see this blog post.

IMPORTANT WSUS scan cab files will continue to be available for Windows 7 SP1 and Windows Server 2008 R2 SP1. If you have a subset of devices running these operating systems without ESU, they might show as non-compliant in your patch management and compliance toolsets.

IMPORTANT Customers who have purchased the Extended Security Update (ESU) for on-premises versions of these operating systems must follow the procedures in KB4522133 to continue receiving security updates after extended support ends on January 14, 2020. For more information on ESU and which editions are supported, see KB4497181.

IMPORTANT Starting on January 15, 2020, a full-screen notification will appear that describes the risk of continuing to use Windows 7 Service Pack 1 after it reaches end of support on January 14, 2020. The notification will remain on the screen until you interact with it. This notification will only appear on the following editions of Windows 7 Service Pack 1:

Note The notification will not appear on domain-joined machines or machines in kiosk mode.

IMPORTANT Starting in August, 2019, updates to .NET Framework 4.6 and above, for Windows Server 2008 SP1, Windows Server 2008 R2 SP1, and Windows 7SP1, require SHA-2 Code signing support. Please make sure that you have all the latest Windows Updates before applying this update to avoid installation issues. For more detailed information about SHA-2 code signing support updates, please see KB 4474419.

IMPORTANT All updates for .NET Framework 4.7.2, 4.7.1, 4.7, 4.6.2, 4.6.1, and 4.6 require that the d3dcompiler_47.dll update is installed. We recommend that you install the included d3dcompiler_47.dll update before you apply this update. For more information about the d3dcompiler_47.dll, see KB 4019990.

IMPORTANT If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Summary

Security improvements

There are no new security improvements in this release. This update is cumulative and contains all previously released security improvements.

Quality and reliability improvements

CLR1

- Addresses a performance issue caused by incorrect configuration in the GC.

1 Common Language Runtime (CLR)

Known issues in this update

Microsoft is not currently aware of any issues in this update.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 5006764 Description of the Security and Quality Rollup for .NET Framework 2.0, 3.0, 4.5.2, 4.6 and 4.6.2 for Windows Server 2008 SP2 (KB5006764)

  • 5006761 Description of the Security and Quality Rollup for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB5006761)

How to obtain and install the update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 installed.

You must install the updates listed below and restart your device before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup and applying Microsoft security fixes.

  1. The March 12, 2019 servicing stack update (SSU) (KB4490628). To get the standalone package for this SSU, search for it in the Microsoft Update Catalog. This update is required to install updates that are only SHA-2 signed.

  2. The latest SHA-2 update (KB4474419) released September 10, 2019. If you are using Windows Update, the latest SHA-2 update will be offered to you automatically. This update is required to install updates that are only SHA-2 signed. For more information on SHA-2 updates, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS.

  3. The Extended Security Updates (ESU) Licensing Preparation Package (KB4538483) released February 11, 2020. The ESU licensing preparation package will be offered to you from WSUS. To get the standalone package for ESU licensing preparation package, search for it in the Microsoft Update Catalog.

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

Yes

None. This update will be downloaded and installed automatically from Windows Update if you are an ESU customer.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

Product: Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1,Windows Embedded Standard 7 Service Pack 1, Windows Embedded POSReady 7

Classification: Updates

Update removal information

To remove this update, use the Programs and Features item in Control Panel.

Update restart information

This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.

Update replacement information

This update replaces previously released updates 5004871. 5004874.

File Information

x86

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.3771.0

35,704

08-Sep-2021

19:34

aspnet_wp.exe

4.7.3771.0

39,296

08-Sep-2021

19:34

clr.dll

4.7.3870.0

7,247,736

08-Sep-2021

20:09

clrjit.dll

4.7.3870.0

515,976

08-Sep-2021

20:09

dfdll.dll

4.7.3221.0

159,952

08-Sep-2021

19:34

GlobalUserInterface.CompositeFont

186,009

08-Sep-2021

19:34

mscordacwks.dll

4.7.3870.0

1,336,184

08-Sep-2021

20:09

mscordbi.dll

4.7.3870.0

1,162,120

08-Sep-2021

20:09

mscoreei.dll

4.7.3468.0

512,488

08-Sep-2021

19:34

mscorlib.dll

4.7.3870.0

5,638,536

08-Sep-2021

20:09

mscorsvc.dll

4.7.3771.0

424,824

08-Sep-2021

19:34

mscorsvw.exe

4.7.3771.0

100,800

08-Sep-2021

19:34

msvcp120_clr0400.dll

12.0.52519.0

485,576

08-Sep-2021

20:09

msvcr120_clr0400.dll

12.0.52519.0

987,840

08-Sep-2021

20:09

ngen.exe

4.7.3771.0

135,144

08-Sep-2021

19:34

VsVersion.dll

14.7.3835.0

12,176

08-Sep-2021

19:34

peverify.dll

4.7.3870.0

181,624

08-Sep-2021

20:09

PresentationCore.dll

4.7.3835.0

3,635,088

08-Sep-2021

19:34

PresentationFramework.dll

4.7.3835.0

6,257,528

08-Sep-2021

19:34

PresentationFramework-SystemData.dll

4.7.3835.0

17,272

08-Sep-2021

19:34

PresentationHost_v0400.dll

4.7.3835.0

207,240

08-Sep-2021

19:34

PresentationHost_v0400.dll.mui

4.7.3835.0

77,704

08-Sep-2021

19:34

PresentationNative_v0400.dll

4.7.3835.0

820,104

08-Sep-2021

19:34

ReachFramework.dll

4.7.3570.0

677,656

08-Sep-2021

19:34

ServiceMonikerSupport.dll

4.7.3620.0

30,192

08-Sep-2021

19:34

SMDiagnostics.dll

4.7.3620.0

74,840

08-Sep-2021

19:34

SMSvcHost.exe

4.7.3515.0

139,264

08-Sep-2021

19:34

SOS.dll

4.7.3870.0

736,656

08-Sep-2021

20:09

System.Speech.dll

4.7.3650.0

675,720

08-Sep-2021

19:34

System.Activities.dll

4.7.3620.0

1,534,008

08-Sep-2021

19:34

System.ComponentModel.DataAnnotations.dll

4.7.3221.0

127,400

08-Sep-2021

19:34

System.Core.dll

4.7.3835.0

1,544,984

08-Sep-2021

19:34

System.Data.Entity.dll

4.7.3221.0

4,035,664

08-Sep-2021

19:34

System.DirectoryServices.AccountManagement.dll

4.7.3221.0

297,648

08-Sep-2021

19:34

System.IdentityModel.dll

4.7.3620.0

1,095,736

08-Sep-2021

19:34

System.IdentityModel.Services.dll

4.7.3620.0

199,160

08-Sep-2021

19:34

System.Printing.dll

4.7.3570.0

374,032

08-Sep-2021

19:34

System.Runtime.Serialization.dll

4.7.3620.0

1,057,336

08-Sep-2021

19:34

System.ServiceModel.Channels.dll

4.7.3620.0

158,704

08-Sep-2021

19:34

System.ServiceModel.Discovery.dll

4.7.3620.0

309,232

08-Sep-2021

19:34

System.ServiceModel.dll

4.7.3620.0

6,324,792

08-Sep-2021

19:34

System.ServiceModel.Internals.dll

4.7.3620.0

261,688

08-Sep-2021

19:34

System.ServiceModel.Routing.dll

4.7.3221.0

132,208

08-Sep-2021

19:34

System.ServiceModel.WasHosting.dll

4.7.3620.0

40,944

08-Sep-2021

19:34

System.Web.ApplicationServices.dll

4.7.3771.0

63,768

08-Sep-2021

19:34

System.Web.Extensions.dll

4.7.3771.0

1,842,960

08-Sep-2021

19:34

System.Workflow.Activities.dll

4.7.3570.0

1,052,136

08-Sep-2021

19:34

System.Workflow.ComponentModel.dll

4.7.3570.0

1,553,896

08-Sep-2021

19:34

System.Workflow.Runtime.dll

4.7.3570.0

499,480

08-Sep-2021

19:34

System.Runtime.Caching.dll

4.7.3221.0

109,864

08-Sep-2021

19:34

System.Configuration.dll

4.7.3630.0

420,512

08-Sep-2021

19:34

System.Data.dll

4.7.3730.0

3,464,568

08-Sep-2021

19:34

System.Data.SqlXml.dll

4.7.3221.0

734,520

08-Sep-2021

19:34

System.Deployment.dll

4.7.3221.0

879,408

08-Sep-2021

19:34

System.DirectoryServices.Protocols.dll

4.7.3221.0

201,624

08-Sep-2021

19:34

System.dll

4.7.3650.0

3,556,616

08-Sep-2021

19:34

System.Drawing.dll

4.7.3221.0

600,864

08-Sep-2021

19:34

System.Management.dll

4.7.3221.0

415,536

08-Sep-2021

19:34

System.Net.Http.dll

4.7.3221.0

204,584

08-Sep-2021

19:34

System.Runtime.Remoting.dll

4.7.3221.0

347,472

08-Sep-2021

19:34

System.Security.dll

4.7.3701.0

318,712

08-Sep-2021

19:34

System.Transactions.dll

4.7.3221.0

309,328

08-Sep-2021

19:34

System.Web.dll

4.7.3771.0

5,409,680

08-Sep-2021

19:34

System.Windows.Controls.Ribbon.dll

4.7.3835.0

739,192

08-Sep-2021

19:34

System.Windows.Forms.dll

4.7.3835.0

5,235,480

08-Sep-2021

19:34

System.Xaml.dll

4.7.3835.0

635,168

08-Sep-2021

19:34

System.Xml.dll

4.7.3221.0

2,670,344

08-Sep-2021

19:34

UIAutomationClient.dll

4.7.3835.0

170,872

08-Sep-2021

19:34

UIAutomationClientsideProviders.dll

4.7.3835.0

354,168

08-Sep-2021

19:34

UIAutomationProvider.dll

4.7.3835.0

41,848

08-Sep-2021

19:34

UIAutomationTypes.dll

4.7.3835.0

213,880

08-Sep-2021

19:34

webengine.dll

4.7.3771.0

17,784

08-Sep-2021

19:34

webengine4.dll

4.7.3771.0

543,120

08-Sep-2021

19:34

WindowsBase.dll

4.7.3835.0

1,289,104

08-Sep-2021

19:34

WMINet_Utils.dll

4.7.3221.0

136,432

08-Sep-2021

19:34

WorkflowServiceHostPerformanceCounters.dll

4.7.3570.0

89,880

08-Sep-2021

19:34

WPFFontCache_v0400.exe.mui

4.7.3835.0

12,168

08-Sep-2021

19:34

WPFFontCache_v0400.exe

4.7.3835.0

18,848

08-Sep-2021

19:34

wpfgfx_v0400.dll

4.7.3835.0

1,338,760

08-Sep-2021

19:34

Placeholder.dll

4.7.3835.0

17,800

08-Sep-2021

19:34

PenIMC2_v0400.dll

4.7.3835.0

79,240

08-Sep-2021

19:34

x64

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.3771.0

39,312

08-Sep-2021

19:34

Aspnet_perf.dll

4.7.3771.0

35,704

08-Sep-2021

19:34

aspnet_wp.exe

4.7.3771.0

43,928

08-Sep-2021

19:34

aspnet_wp.exe

4.7.3771.0

39,296

08-Sep-2021

19:34

clr.dll

4.7.3870.0

10,366,336

08-Sep-2021

19:34

clr.dll

4.7.3870.0

7,247,736

08-Sep-2021

20:09

clrjit.dll

4.7.3870.0

1,214,328

08-Sep-2021

19:34

clrjit.dll

4.7.3870.0

515,976

08-Sep-2021

20:09

compatjit.dll

4.7.3870.0

1,252,744

08-Sep-2021

19:34

dfdll.dll

4.7.3221.0

191,696

08-Sep-2021

19:34

dfdll.dll

4.7.3221.0

159,952

08-Sep-2021

19:34

GlobalUserInterface.CompositeFont

186,009

08-Sep-2021

19:34

mscordacwks.dll

4.7.3870.0

1,833,864

08-Sep-2021

19:34

mscordacwks.dll

4.7.3870.0

1,336,184

08-Sep-2021

20:09

mscordbi.dll

4.7.3870.0

1,615,240

08-Sep-2021

19:34

mscordbi.dll

4.7.3870.0

1,162,120

08-Sep-2021

20:09

mscoreei.dll

4.7.3468.0

631,272

08-Sep-2021

19:34

mscoreei.dll

4.7.3468.0

512,488

08-Sep-2021

19:34

mscorlib.dll

4.7.3870.0

5,420,432

08-Sep-2021

19:34

mscorlib.dll

4.7.3870.0

5,638,536

08-Sep-2021

20:09

mscorsvc.dll

4.7.3771.0

538,000

08-Sep-2021

19:34

mscorsvc.dll

4.7.3771.0

424,824

08-Sep-2021

19:34

mscorsvw.exe

4.7.3771.0

121,768

08-Sep-2021

19:34

mscorsvw.exe

4.7.3771.0

100,800

08-Sep-2021

19:34

msvcp120_clr0400.dll

12.0.52519.0

690,008

08-Sep-2021

19:34

msvcp120_clr0400.dll

12.0.52519.0

485,576

08-Sep-2021

20:09

msvcr120_clr0400.dll

12.0.52519.0

993,632

08-Sep-2021

19:34

msvcr120_clr0400.dll

12.0.52519.0

987,840

08-Sep-2021

20:09

ngen.exe

4.7.3771.0

167,400

08-Sep-2021

19:34

ngen.exe

4.7.3771.0

135,144

08-Sep-2021

19:34

VsVersion.dll

14.7.3835.0

12,176

08-Sep-2021

19:34

VsVersion.dll

14.7.3835.0

12,176

08-Sep-2021

19:34

peverify.dll

4.7.3870.0

253,816

08-Sep-2021

19:34

peverify.dll

4.7.3870.0

181,624

08-Sep-2021

20:09

PresentationCore.dll

4.7.3835.0

3,613,056

08-Sep-2021

19:34

PresentationCore.dll

4.7.3835.0

3,635,088

08-Sep-2021

19:34

PresentationFramework.dll

4.7.3835.0

6,257,528

08-Sep-2021

19:34

PresentationFramework-SystemData.dll

4.7.3835.0

17,272

08-Sep-2021

19:34

PresentationHost_v0400.dll

4.7.3835.0

270,736

08-Sep-2021

19:34

PresentationHost_v0400.dll.mui

4.7.3835.0

77,712

08-Sep-2021

19:34

PresentationHost_v0400.dll

4.7.3835.0

207,240

08-Sep-2021

19:34

PresentationHost_v0400.dll.mui

4.7.3835.0

77,704

08-Sep-2021

19:34

PresentationNative_v0400.dll

4.7.3835.0

1,102,736

08-Sep-2021

19:34

PresentationNative_v0400.dll

4.7.3835.0

820,104

08-Sep-2021

19:34

ReachFramework.dll

4.7.3570.0

677,656

08-Sep-2021

19:34

ServiceMonikerSupport.dll

4.7.3620.0

32,240

08-Sep-2021

19:34

ServiceMonikerSupport.dll

4.7.3620.0

30,192

08-Sep-2021

19:34

SMDiagnostics.dll

4.7.3620.0

74,840

08-Sep-2021

19:34

SMSvcHost.exe

4.7.3515.0

139,264

08-Sep-2021

19:34

SOS.dll

4.7.3870.0

865,152

08-Sep-2021

19:34

SOS.dll

4.7.3870.0

736,656

08-Sep-2021

20:09

System.Speech.dll

4.7.3650.0

675,720

08-Sep-2021

19:34

System.Activities.dll

4.7.3620.0

1,534,008

08-Sep-2021

19:34

System.ComponentModel.DataAnnotations.dll

4.7.3221.0

127,400

08-Sep-2021

19:34

System.Core.dll

4.7.3835.0

1,544,984

08-Sep-2021

19:34

System.Data.Entity.dll

4.7.3221.0

4,035,664

08-Sep-2021

19:34

System.DirectoryServices.AccountManagement.dll

4.7.3221.0

297,648

08-Sep-2021

19:34

System.IdentityModel.dll

4.7.3620.0

1,095,736

08-Sep-2021

19:34

System.IdentityModel.Services.dll

4.7.3620.0

199,160

08-Sep-2021

19:34

System.Printing.dll

4.7.3570.0

374,552

08-Sep-2021

19:34

System.Printing.dll

4.7.3570.0

374,032

08-Sep-2021

19:34

System.Runtime.Serialization.dll

4.7.3620.0

1,057,336

08-Sep-2021

19:34

System.ServiceModel.Channels.dll

4.7.3620.0

158,704

08-Sep-2021

19:34

System.ServiceModel.Discovery.dll

4.7.3620.0

309,232

08-Sep-2021

19:34

System.ServiceModel.dll

4.7.3620.0

6,324,792

08-Sep-2021

19:34

System.ServiceModel.Internals.dll

4.7.3620.0

261,688

08-Sep-2021

19:34

System.ServiceModel.Routing.dll

4.7.3221.0

132,208

08-Sep-2021

19:34

System.ServiceModel.WasHosting.dll

4.7.3620.0

40,944

08-Sep-2021

19:34

System.Web.ApplicationServices.dll

4.7.3771.0

63,768

08-Sep-2021

19:34

System.Web.Extensions.dll

4.7.3771.0

1,842,960

08-Sep-2021

19:34

System.Workflow.Activities.dll

4.7.3570.0

1,052,136

08-Sep-2021

19:34

System.Workflow.ComponentModel.dll

4.7.3570.0

1,553,896

08-Sep-2021

19:34

System.Workflow.Runtime.dll

4.7.3570.0

499,480

08-Sep-2021

19:34

System.Runtime.Caching.dll

4.7.3221.0

109,864

08-Sep-2021

19:34

System.configuration.dll

4.7.3630.0

420,512

08-Sep-2021

19:34

System.Data.dll

4.7.3730.0

3,526,536

08-Sep-2021

19:34

System.Data.dll

4.7.3730.0

3,464,568

08-Sep-2021

19:34

System.Data.SqlXml.dll

4.7.3221.0

734,520

08-Sep-2021

19:34

System.Deployment.dll

4.7.3221.0

879,408

08-Sep-2021

19:34

System.DirectoryServices.Protocols.dll

4.7.3221.0

201,624

08-Sep-2021

19:34

System.dll

4.7.3650.0

3,556,616

08-Sep-2021

19:34

System.Drawing.dll

4.7.3221.0

600,864

08-Sep-2021

19:34

System.Management.dll

4.7.3221.0

415,536

08-Sep-2021

19:34

System.Net.Http.dll

4.7.3221.0

204,584

08-Sep-2021

19:34

System.Runtime.Remoting.dll

4.7.3221.0

347,472

08-Sep-2021

19:34

System.Security.dll

4.7.3701.0

318,712

08-Sep-2021

19:34

System.Transactions.dll

4.7.3221.0

311,048

08-Sep-2021

19:34

System.Transactions.dll

4.7.3221.0

309,328

08-Sep-2021

19:34

System.Web.dll

4.7.3771.0

5,392,760

08-Sep-2021

19:34

System.Web.dll

4.7.3771.0

5,409,680

08-Sep-2021

19:34

System.Windows.Controls.Ribbon.dll

4.7.3835.0

739,192

08-Sep-2021

19:34

System.Windows.Forms.dll

4.7.3835.0

5,235,480

08-Sep-2021

19:34

System.Xaml.dll

4.7.3835.0

635,168

08-Sep-2021

19:34

System.XML.dll

4.7.3221.0

2,670,344

08-Sep-2021

19:34

UIAutomationClient.dll

4.7.3835.0

170,872

08-Sep-2021

19:34

UIAutomationClientsideProviders.dll

4.7.3835.0

354,168

08-Sep-2021

19:34

UIAutomationProvider.dll

4.7.3835.0

41,848

08-Sep-2021

19:34

UIAutomationTypes.dll

4.7.3835.0

213,880

08-Sep-2021

19:34

webengine.dll

4.7.3771.0

19,344

08-Sep-2021

19:34

webengine.dll

4.7.3771.0

17,784

08-Sep-2021

19:34

webengine4.dll

4.7.3771.0

660,368

08-Sep-2021

19:34

webengine4.dll

4.7.3771.0

543,120

08-Sep-2021

19:34

WindowsBase.dll

4.7.3835.0

1,289,104

08-Sep-2021

19:34

WMINet_Utils.dll

4.7.3221.0

188,144

08-Sep-2021

19:34

WMINet_Utils.dll

4.7.3221.0

136,432

08-Sep-2021

19:34

WorkflowServiceHostPerformanceCounters.dll

4.7.3570.0

101,656

08-Sep-2021

19:34

WorkflowServiceHostPerformanceCounters.dll

4.7.3570.0

89,880

08-Sep-2021

19:34

WPFFontCache_v0400.exe.mui

4.7.3835.0

12,160

08-Sep-2021

19:34

WPFFontCache_v0400.exe.mui

4.7.3835.0

12,168

08-Sep-2021

19:34

WPFFontCache_v0400.exe

4.7.3835.0

19,856

08-Sep-2021

19:34

WPFFontCache_v0400.exe

4.7.3835.0

18,848

08-Sep-2021

19:34

wpfgfx_v0400.dll

4.7.3835.0

1,758,600

08-Sep-2021

19:34

wpfgfx_v0400.dll

4.7.3835.0

1,338,760

08-Sep-2021

19:34

Placeholder.dll

4.7.3835.0

18,816

08-Sep-2021

19:34

Placeholder.dll

4.7.3835.0

17,800

08-Sep-2021

19:34

PenIMC2_v0400.dll

4.7.3835.0

97,656

08-Sep-2021

19:34

PenIMC2_v0400.dll

4.7.3835.0

79,240

08-Sep-2021

19:34

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