Windows keeps adding languages to my language bar.

I have the same problem, and it does appear to be a bug in the updates. Occasionally, after running updates, a language is added to the language bar, which does not appear in the list of preferred languages.

The only solution I have found is when you see this, go ahead and add the language that has appeared in the language bar to the list of preferred languages and then remove it. Then the language will disappear from the language bar. You might need to reboot or logout and log in again. However, once you do add a language to the list of preferred languages the bug in windows update will cause it to appear again, and will do so repeatedly every few weeks perhaps as a consequence of running updates, whether you request them or not, and regardless of what languages you have chosen. This causes me much frustration and anger, but Microsoft has not addressed the issue, and might not even recognize it since they hate to admit problems.

The preferred language list is at Settings\Time and Language\Language, and there you will see the Preferred Languages list. Or you may access it through the Control Panel\Clock and Region\Region\Language Preferences. I’m on Windows 10, build 18362, so navigation to the Preferred Languages list might be different in other builds of Windows 10, and it might even be called something else in other builds, considering how Microsoft loves to pull the rug out from everything we learn about Windows every few months and make us hate Windows — they are completely without any care for their users. That shows how frustrated with this issue I have become.