Windows 10 KB5028574 .NET Framework 4.8.1 for 22H2 and 21H2

KB5028574 .Net Framework 4.8.1 Cumulative update for Windows 10 22H2 and 21H2 changes, bug fixes, direct download link, and the ways to install.


On 22/06/2023 Windows 10 22H2 and 21H2 received a .NET Framework 4.8.1 update having a solitary quality and reliability improvement. This patch has a bug fix for how you use the X509Certificate2Collection, X509Certificate2, X509Certificate, or classes. KB5028574 is the Windows Update that is available for Windows 10 21H2 and 22H2.

Full name of this release is 2023-06 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 for x64 (KB5028574). See: Windows 11 KB5027119 .Net Framework 4.8.1 and 3.5 for 22H2. Let’s what is new in this LCU:

KB5028574 .NET Framework 4.8.1 for Windows 10 22H2 and 21H2 changes, improvements and bug fixes

Here is the changelog:

This LCU does not carry new security improvements.

Changes and bug fixes

Common Language Runtime (CLR) – This update addresses a change that affects how you use the X509Certificate, X509Certificate2, or X509Certificate2Collection classes. When you use them to import a PKCS#12 blob that contains a private key, the calling application might get an exception. The exception message is, “System.Security.Cryptography.CryptographicException: PKCS12 (PFX) without a supplied password has exceeded maximum allowed iterations. See for more information.” To learn more, see KB5028608.

You don’t need to restart your computer to complete the installation of the .NET Framework 4.81 update.

The release has not any known issues.

How to download KB5028574 and install

Follow any of the 2 methods to install KB 5028574 –

1] Using Automatic Windows Update

  1. Click Search and type the term updates.
  2. When the Settings app appears, click on “Check for updates”.

2] Direct download and install from Microsoft Update Catalog

  1. Click on the KB5028574 direct download link.
  2. Find the file compatible with your computer and click on the Download button.
  3. When a separate page shows up, click on the line link located there.
  4. Back to the download location on your computer and double click on the Standalone file:


  1. Click Yes on the confirmation prompt.

Source: Release note.

That’s all!!

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Topics:  Windows update
About Sunita
Love to play with Windows 11 and 10. Suggestion - Going for Registry change or system files edit then remember to take a backup or create a restore point before Starting.