A new Windows 10 security update, Windows 10 KB5008876, has been rolled out to the public. MiniTool Software will show you what’s new and fixes in this new update. On the other hand, you can also know how to get Windows 10 KB5008876 on your Windows 10 computer.

What are New and Fixes in Windows 10 KB5008876?

On January 11, 2022, Microsoft released KB5008876 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 20H2, Windows Server Version 20H2, Windows 10 Version 21H1, and Windows 10 Version 21H2.

  • KB5008876 addresses an issue where an attack by an unauthenticated user could result in DOS on the affected system.
  • The patch also attempts to fix an issue where WPF would sometimes not respond to touch. This can happen if the WPF window was activated by a touch operation, such as in the case of sliding a listbox.
  • This patch also provides solutions for issues involving display flickering, tearing, or incorrect compositing under high GPU load.
  • KB5008882 also brings a potential solution to another problem. Earlier, the extra information associated with the WM_KEYDOWN message was sometimes discarded before the handler for the PreviewKeyDown or KeyDown event could retrieve it via GetMessageExtraInfo.
  • It fixes an issue where FindAll or AutomationElement.FindFirst would not search subtrees for hands whose UIA_WindowVisibilityOverridden property had been set to 1.
  • Another issue this patch attempts to address is the inclusion of bindings on TextBox.Text, where UpdateSourceTrigger=PropertyChanged ends up giving incorrect results when using the Microsoft Quick IME.
  • There are also some improvements to SQL connectivity. If a NullReferenceException is thrown while loading a SqlParameter value with the help of a client-provided delegate causing some error, it may prevent the SqlClient driver from cleaning up the state of the connection state. The end result will be an unexpected failure on the connection. It’s important to point out that if you recognize this situation, you can enable the AppContext switch “Switch.System.Data.SqlClient.CleanupParserOnAllFailures” to clean up any kind of failed connections.
  • Finally, it also provides some improvements to unsuccessful requests not properly timing out when making asynchronous WCF calls over HTTP.

How to Get KB5008876

How to get Windows 10 KB5008876 and install it on your Windows 10 to fix some issues? There are two methods for you.

Download KB5008876 via Windows Update

Step 1: Press Win + I to open Windows Settings.

Step 2: Click Update & Security and go to Windows Update.

Step 3: Click Check for updates. Then, Windows will start checking for available updates including KB5008876.

Step 4: After downloading this cumulative update for your Windows 10, you need to restart the PC to finish the installation.

Download KB5008876 via Microsoft Update Catalog

In addition, you can try another way – via Microsoft Update Catalog.

Step 1: Visit this page on your web browser.

Step 2: Type KB5008876 on the search bar and click Search.

Step 3: Select the proper Windows version and click the Download button.

Step 4: Then copy the download link from the popup to the address bar in your browser to get the installation file. Then, install it on your Windows 10 PC.

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