If you need to remove that person's sign-in information from your PC:
- Select Start > Settings > Accounts > Family & other users.
- Select the person's name or email address, then select Remove. Note that this will not delete the person's Microsoft account, it will just remove their sign-in info from your PC.
How do I remove other users from login screen?
Open the domain ( gpmc. msc ) or local Group Policy editor (gpedit. msc) and go to the section Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. Enable the policy “Interactive logon: Do not display last user name”.