July 2017 Description of Preview of Quality Rollup for the .NET Framework 4.5.2 on Windows Server 2008 SP2, Windows 7 SP1, and Server 2008 R2 SP1: July 18, 2017


This July 2017 Update for  Windows Server 2008 Service Pack 2 (SP2), Windows 7 Service Pack 1 (SP1), and Windows Server 2008 R2 SP1 includes cumulative reliability improvements in the .NET Framework 4.5.2. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the "Prerequisites" and "Restart requirement" sections.


  • 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.

Quality and reliability improvements

This update contains cumulative updates that were released previously starting from October 11, 2016. Additionally, this update contains fixes to the following issues.


Windows Management Infrastructure (WMI)

  • Windows Management Infrastructure (WMI) setting of privileges is event-driven to support changes in the option values.

Windows Presentation Framework (WPF)

  • A Windows Presentation Framework (WPF) application that runs on a touch-enabled or stylus-enabled device may experience crashes related to memory corruption in PenIMC.dll. This update addresses these issues.

  • Under certain conditions, WPF applications that use SpellCheck together with custom dictionaries can crash and generate a NullReferenceException error. This especially applies to those applications that call into the SpellCheck.CustomDictionaries.Clear() method. This update addresses this issue.

Additional information about this update

For more information about this update as it relates to Windows 7 SP1 and Windows Server 2008 R2 SP1, see the following article in the Microsoft Knowledge Base:

4032113 July 2017 Preview of Quality Rollup for the .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 on Windows 7 SP1 and Server 2008 R2 SP1: July 18, 2017

For more information about this update as it relates to Windows Server 2008 SP2, see the following article in the Microsoft Knowledge Base:

4032116 July 2017 Preview of the Quality Rollups for the .NET Framework 2.0 SP2, 4.5.2, and 4.6 for Windows Server 2008 SP2: July 18, 2017

Known issues

When you apply this update by using the interactive setup wizard on non-English locale systems, you notice that the interactive setup wizard dialog boxes contains some pseudo localized characters instead of localized content. This is a non-impacting, UI-only, setup issue that does not affect the deployment result or functionality of the update contents. Please apply this update to help secure your computer against vulnerabilities and the issues that are addressed by this update.

For more information about this issue, go to the following article in the Microsoft Knowledge Base:

4043564 Certain .NET Framework 4.5.2 updates contain pseudo non-English characters in the Setup Wizard UI

How to get this update

Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Microsoft Update Catalog

To get the stand-alone package for this update, go to one of the following on the Microsoft Update Catalog website:

  • For Windows Server 2008 SP2, click here.
  • For Windows 7 SP1 and Windows Server 2008 R2 SP1, click here.

Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.
  2. Expand ComputerName, and then click Action.
  3. Click Import Updates.
  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You will need to install the ActiveX control to continue.
  5. After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Type 4032116 for Windows Server 2008 SP2 or 4032113 for Windows 7 SP1 and Windows Server 2008 R2 SP1 in the Search box, and then click Search.
  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.
  7. After you select all the packages that you need, click View Basket.
  8. Click Import to import the packages to your WSUS server.
  9. To return to WSUS, click Close after the packages have been imported.

The updates are now available for installation through WSUS.


To apply this update, you must have the .NET Framework 4.5.2 installed.

Restart requirement

You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

Update replacement information

This update does not replace any previously released update.

File information


Applies to

This article applies to the following:


  • Microsoft .NET Framework 4.5.2 when used with:
    • Windows Server 2008 R2 Service Pack 1
    • Windows 7 Service Pack 1
    • Windows Server 2008 Service Pack 2