New Windows 11 Update 22000.434 (KB5009566) – First Security Update in 2022 for the Main Release

In this article, we will talk about the latest Windows 11 Update for the Main Release and also the first Windows 11 Security Update in 2022, which is Build 22000.434 or KB5009566.

For those of you who are not familiar with how Windows 11 Updates for the Main Release work, I will explain it to you in the following lines.

Every month Windows 11 has a B and a C Release for Windows 11. Usually the B Release is launched on the second Tuesday of the month and contains all the features that were tested in the previous month’s C Release.

Because in December we didn’t have a C Release, of course as we had the holidays, the B Release for the month of January only brings us a few Improvements and a lot of Security fixes.

Improvements and fixes

  • Addresses a known issue that affects Japanese Input Method Editors (IME). When you use a Japanese IME to enter text, the text might appear out of order or the text cursor might move unexpectedly in apps that use the multibyte character set (MBCS). This issue affects the Microsoft Japanese IME and third-party Japanese IMEs.
  • Updates security for your Windows operating system.   
  • This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

For a more detailed view and the whole list of security fixes you can check out this article from the Microsoft Website.

For a more in-depth presentation of the new update, you can watch the video below from the youtube channel.

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