If the Send optional diagnostic data is not turning off, there could be an organizational level configuration at play here. Check this post to know more about the issue.

In the latest Windows 11 Dev build, Microsoft has removed all "known mechanisms" that allowed users to create a local account during the setup process.

Microsoft is cracking down on this ability just as Windows 10 nears the end of its life in just a week. It's possible removing the ability to login without a Microsoft account will enable the tech ...

Microsoft is cracking down on bypass methods that let Windows 11 installs use a local account, and avoid an internet requirement during the setup process. In a new Windows 11 test build released today ...