Having different accounts on a shared PC lets multiple people use the same device, all while giving everyone their own sign-in info, plus access to their own files, browser favorites, and desktop settings.
You can add a local user account (an offline account) or Microsoft account for a user to sign in to the PC with.
If you have a user account on your PC that is not being used or no longer needed, you can permanently remove it by deleting it.
This tutorial will show you how to delete a user account to remove it from your Windows 11 PC.