Miscellaneous topics that do not fit into specific categories.
Hi! To stop that Microsoft account from coming back, remove it from Windows and clear the saved sign-in. Go to Settings > Accounts > Email & accounts and under Accounts used by other apps select the Outlook/Microsoft account and choose Remove.
Also check Settings > Accounts > Access work or school and Disconnect it if it appears there. If your Windows user is actually signed in with that Microsoft account, go to Settings > Accounts > Your info and choose Sign in with a local account instead, then restart.