Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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Windows 11 is supposed to be on this computer and something is saying Windows 10 does not support what site I'm trying to reach

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There is supposed to be Windows 11 on this computer, but something is saying Windows 10 didn't support something the end of Oct. I was on the site I'm trying to reach yesterday and there was no problem.

There is supposed to be Windows 11 on this computer, but something is saying Windows 10 didn't support something the end of Oct. I was on the site I'm trying to reach yesterday and there was no problem.

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Hi, This forum is intended to help users with Mozilla products, such as Firefox. As a moderator, I'm going to mark this thread as off-topic and lock the thread since it is not a subject covered in the support forum. Please see Mozilla Support rules and guidelines.

To answer why sites may think you are using Firefox on Windows 10. The Firefox UserAgent you used to post with is Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:146.0) Gecko/20100101 Firefox/146.0

Windows 11 is basically based on the same NT 10.0 as Windows 10. https://en.wikipedia.org/wiki/Windows_NT#Releases