KB5009566 bumps the version number to build 22000.434, and according to the official notes, it fixes text showing out of order, or the text cursor might move unexpectedly in apps on devices using Japanese Input Method Editors (IME). Also, the update KB5009566 fixes close to one-hundred vulnerability problems, including six zero-day vulnerabilities and more than 95 security vulnerabilities, which you can review in more detail at the Security Update Guide and the January 2022 Security Updates website. If you are still on Windows 10, Microsoft is also making available for download updates for supported releases, including versions 21H2, 21H1, 20H2, 1909, 1809, 1607, and 1507. The update download and install automatically, but you can always force it from Settings > Windows Updates and click the Check for Updates button. Alternatively, you can download the update KB5009566 directly from the Microsoft Update Catalog website.

Uninstall update KB5009566

If the system update is causing issues, you can always uninstall it using these steps: Once you complete the steps, the recently installed update will be removed from your installation, fixing any issues resulting from the release. If your computer doesn’t boot after installing KB5009566, you can remove the update from the Advanced startup environment using these steps. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.