To add a local account to Windows 11, first navigate to Settings->Accounts. Then scroll down and click "Other Users." Click the Add account button.

QUICK ANSWER To remove and delete a Microsoft account from Windows 11: Switch to local login using Settings > Accounts > Your info > Sign in with a local account instead. Once that's done, go to ...

The Windows 11 out-of-the-box experience prompts you to sign into Windows with a Microsoft account, but you can skip it in a few steps.

Microsoft has restored its guide on how to switch from a Microsoft account to a local account on Windows 11.

Important: Before you delete the existing Microsoft account, you should back up all the data belonging to this old account – otherwise it will all be deleted!

On Windows 11, you can change your account password and PIN from the Settings app and Sign-in screen, and in this guide, I'll teach you the steps to complete this task.

Microsoft removes documentation for switching to a local account in Windows 11 But most Microsoft account sign-in workarounds for Windows 11 continue to work.